Z1 Urethane Rear Differential Bushing Set - Z1 Motorsports - Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60
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Z1 Urethane Rear Differential Bushing Set

starstarstarstarstar 5/5 - (142 Reviews)
Fits models: 350Z / 370Z / G35 / G37 / Z / Q60 2014-2016 /...

Product Description

The large stock rubber fluid-filled bushing in the rear subframe of the 2023+ Z, 350Z, G35, 370Z, & G37 models is prone to failure.  It is common to see evidence of silicone fluid leaking out of the busted bushing characterized by black stains on the subframe below the bushing.  The stock rear bushing is soft to isolate drivetrain vibrations, however, performance is compromised especially after the bushing fails resulting in excessive differential movement reducing torque transfer and eventually causing a thud or knocking noise between shifts.  The stock rear bushing is part of the rear subframe assembly and not available for purchase separately.   

In addition to the rear bushing, there are smaller bushings in the front mount ears of the differential to secure it to the subframe assembly.  The front bushings are not as prone to failure but can wear out due to excessive play after the failure of the rear bushing.  When these bushings wear out, the differential twists under load which can result in wheel hop, increased chassis vibration, damage to the rear differential cover, and excessive axle wear.

After several years of research, installing and comparing other solutions on the market, Z1 is now proud to offer replacement solutions for rear differential bushings that deliver the best in fitment and performance.  Due to some problems we have experienced with other products we have specified a high-temperature urethane formulation to prevent the bushing from deterioration under extreme heat often experienced on the track.  The Z1 bushing is the optimal length to fill the hole in the rear subframe in order to provide the most contact area while not protruding out the ends.  Our bushing includes a press-in steel sleeve that locks the urethane securely in place without the need to remove the existing stock steel sleeve from the original bushing.  We also offer a Z1 solid aluminum rear differential bushing set for enthusiasts willing to trade some drivetrain noise and vibration for torque transfer and control. 

Z1 differential bushings aren't just a repair item, they're an essential upgrade for enthusiasts from daily drivers to the weekend track warrior. Z1 bushings are engineered to provide the user with a product that fits like OEM at a fraction of the price while maintaining the highest level of performance. The end result is a car that is more pleasurable to drive with precise shifts and predictable control.

Each Kit Includes:

  • (1) Rear Differential Bushing
  • (1) Rear Differential Bushing Sleeve
  • (1) Detailed Installation Manual
  • (2) Front Differential Bushing - Top (Diff Nose)
  • (2) Front Differential Bushings - Rear (Diff Nose)
  • (2) Front Differential Bushing Sleeves (Diff Nose)
  • (2) Front Differential Bushing Washers  (Diff Nose)

Fits:

  • 2003-2008 Nissan 350Z
  • 2009+ Nissan 370Z
  • 2003-2007 Infiniti G35 Coupe
  • 2003-2008 Infiniti G35 Sedan
  • 2008-2013 Infiniti G37 Coupe
  • 2009-2013 Infiniti G37 Sedan
  • 2014-2015 Infiniti Q60 Coupe
  • 2023+ Nissan Z

To aid in the removal of the factory differential bushing, see our differential bushing removal tool HERE!

*** This item does not qualify for any additional discounts or promotions ***

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Questions our customers have asked

Just seeing if you guys can give me a rough estimate time a shop would take to install these for both subframe and dif, ?
4.5 Hours labor is the standard,
The Z1 Urethane differential bushings are priced very competitively to perhaps the most popular aftermarket urethane option from the Whiteline series. My question is, what is the difference in material stiffness and ride quality between the two products? I have heard from other customers that the Whiteline model provides great comfort as well as noise-free operation. As someone who daily drives a 2004 350Z, these attributes are among my top priorities when selecting an upgrade. Do the Z1 bushings tend to make any noise? Also, compared with the Whiteline bushings, is the Z1 option stiffer or softer? I don't mind a bit of extra stiffness so long as it doesn't add excessive noise or vibration. Thanks for your info.
Isaiah, We actually use a softer durometer bushing in our kit but with a fuller design that is slightly pre loaded when installed vs Whitelines harder bushing and pin holed spherical rear bushing design. From the driver seat our best drivers cannot differentiate between the Whiteline and Z1 diff bushings when installed. We hope this helps give you a bit more insight regarding these parts. Regards, The Z1 Team

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What our customers say

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Jorge
March 12, 2024
Great product easy installation.
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Michael
March 8, 2024
Quality is good, as expected. The downloaded instructions are well written and helpful.
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Oscar
February 10, 2024
These are fantastic a definite top tier mod
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Theodore
February 7, 2024
Increase driveline stiffness 😀 Online install pdf 👍🏻 This + diff brace 😮😁😁😁
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Theodore
February 7, 2024
Increase driveline stiffness 😀 Online install pdf 👍🏻 This + diff brace 😮😁😁😁
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Angelo
February 2, 2024
this product works well.
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Max
February 1, 2024
Power feels much more smooth no wheel hop anymore and the back end feels more planted
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Willie
January 5, 2024
Great improvement over stock bushings that wear out over time and leak. The only comment is that there was no installation manual with the kit.
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Frederick
January 2, 2024
A have to, you need this, no questions. Just buy it
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Michal
December 14, 2023
The thuds went away between shifts.
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Jessy
December 11, 2023
Way better than oem bushings. Strong and no wheel hop.
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Rodney
December 2, 2023
Great product!! Better handling...
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Seddrick
December 2, 2023
Excellent product. Original OEM blew after 80k. Get this!
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Hector
November 8, 2023
Absolutely recommend this-
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Fabian
October 17, 2023
Changed the handle of the ride. Definitely helps put the power down. 5/5
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Daniel
October 8, 2023
One of the more difficult installs I’ve ever done on any car, but so worth it! Rear feels way more stable. And no added NVH that I can tell.
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Jorge
September 30, 2023
eliminated my rear clunking coming the from the notorious fluid filled bushing. definitely recommend if you enjoy spirited driving
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Joshua
September 19, 2023
Luxury-wise, can't even tell the difference between regular and these. No NVH at all! Didn't completely solve my clunk on shifts (auto), but combined with poly engine and trans mounts (beware NVH on trans mount), problem is solved!
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Klas
September 18, 2023
Im very satisfied with the feeling of these bushings. The rear feels more direct and also aid in overall feeling when driving.
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Matt
August 27, 2023
These were the first poly bushings ive had installed on any car ive owned (15 Q60S). From someone whose car is a primary daily these definitely add a nice firm stiffness to the car. After the first couple drives i noticed immediately how the car handeled bumps and dips in the road better. It felt more firm but also soft to where i barely felt it, at least compared to how the car drove on the oem bushings.
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Ryan
July 27, 2023
My rear diff bushing went bad and the shifting/jerking was bad on my 2009 FX35. I replace the center rear and the truck drives like new. The product is well-made and fits perfectly.
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Colton
July 25, 2023
Night and day difference, my diff bushing was blown out and had the black liquid dried on to my subframe. Hardly any increase in vibrations. Under acceleration, the car feels much more planted, also there is less wheel hop, install was difficult but is pretty straight forward. Watch videos and make sure you understand what you have to remove and tools required.
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Christopher
July 10, 2023
These bushing are a must. They are night and day difference over oem bushings. Really makes the diff feel solid for a smoother ride.
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Yessenia
June 12, 2023
At first when we installed this I went for a drive I still could hear the thud in the back but after driving it for like 2 minutes I noticed the sound was gone I’m guessing the bushings had settled in but haven’t heard the noise since. Great product!
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Joshua
May 26, 2023
Amazing kit also bought the tool to make it easy
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Nhut
May 10, 2023
i like it perfect fit
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Keon
May 8, 2023
This is a great product I would highly recommend it
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Moises
May 6, 2023
Good mod for any g or z Differential makes the rear end feel planted crisp acceleration.
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Ronny
April 22, 2023
Stabilized the car. Tightened up the rear end of my Z
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Christopher
April 16, 2023
My driveline has been sloppy for a while, and while I only drive on the street to commute to and from work with occasional spirited driving, my differential bushing still ended up cracking. I have an auto, and while on light throttle, as the car shifts, the car felt like it was ‘bucking’ front to back. Because as the transmission would engage the next gear, the differential would torque back and forth, causing the car to ‘lunge’ and feel like it was lightly ‘bucking’. This also happened on deceleration while lightly coming to a stop. These bushings (coupled with the Z1 differential brace) got rid of all of that slop and the ‘bucking’ is gone. Install is very easy. The poly bushings press in by hand or with the tap of a hammer no problem. I use a drill to drill out the stock bushing. Than a sawzall to carefully cut a slit in the metal sleeve. Then delicately use an air gun to hit the edges of the sleeve and knock it out. A hammer and chisel work too.
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Bryan
April 6, 2023
Good piece, easy to hammer in with a rubber mallet, just like everything in life, a good amount of lubrication goes a long way
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Chadwick
March 25, 2023
If you have a 370z, and you dont already have this installed, you will. the silicone filled stock part fails and will leak out and not work correctly. Dont do what i did and avoid ordering the kit to remove the old one. It took me 18 hours of using a metal file and all other sketchy methods to get it to release.
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Nathaniel
February 19, 2023
I installed these on a 2013 g37 sedan. While they are very much superior to the oem mounts and the car feels great after the install, anyone considering this install had better be prepared for what they are getting into. For the sedan especially, the trunk's floor extends down to block the rear access of the rear bushing. Which makes the install even more painful. The z1 tool was a big help, but I dread ever having to this again.
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Rahil
January 16, 2023
Absolutely amazing upgrade to the OEM bushings. Excellent build quality and you can notice a difference in handling and stability in the rear. She definitely tends to want to slide more often, plus the power being put down to the rear feels a lot more linear. I had a local tuning shop in Dallas install these for me as I don’t have all the tools to do a job like this. If you don’t have the removal tool, you will have to cut the old bushings out of the metal collar. Well worth it though. For reference, this was done on a 2015 370Z Sport 6MT.
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Ted
December 21, 2022
This diff bushing is a must!!! I love it!!
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Tristan
December 16, 2022
So happy with this bushing set on my Z. This bushing set has a much firmer feel and made me realize how much slop existed when the oem bushings were installed.
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Michael
November 28, 2022
Great upgrade! As always Z1 Rocks! m/
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Joseph
October 27, 2022
No more wheel hop. A little squeaky at first. Pulled out and used a anti seizure dry lubricant no issues now.
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Chris
September 30, 2022
For clarity I added urethane transmission mounts, engine mounts, and rear dif bushings at the same time. Highly recommend. The driveline feels extremely taught. When you modify the accelerator the power is at the wheels. No split second delays anymore, the car is so much more responsive. Obviously some increase in NVH (I assume largely from engine mounts).
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Anthony
September 29, 2022
Fantastic bushings. Way more solid than the factory bushings but doesn't add to much extra road noise.
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Luke
August 31, 2022
Worked like a charm and the diff is much firmer.
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Brian
July 27, 2022
Stock bushings gave out before I got the car. Felt sluggish and weak. Added these, stiffened up the drivetrain significantly, and I'm super happy with them! Been using these for about 2-3 years now, and I Love Them!
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Barry
July 22, 2022
Works great if you intend on purchasing please do yourself the favor of buying the kit to help remove the factory bushing out of the subframe
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Ismael
July 20, 2022
Super product. Big difference after changing this bushings!
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Samuel
July 12, 2022
A must for the g37 awd or not cheap upgrade
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Chris
June 20, 2022
Massive difference highly suggest, really stiffened up the drivetrain
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Mario
June 14, 2022
I like how it rides and it is a perfect match. I do recommend this product if you have a z350 or g35.
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Tavassen
June 12, 2022
Awesome bushings. My Z has gotten so much more responsive with just these bushings combined with Z1 Polyurethane motor mounts. Solid 5/5 !
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Hoa
June 5, 2022
I just got these installed by my mechanic an hour ago. It took about 2 hours and 20 minutes. He said that Z1 bushings are good quality, harder to install and take longer than solid bushing or Whitelines. The rear end feels solid and doesn’t feel sloppy when I turn the corner. I have a sedan so there is little room behind the subframe and the spare wheel well. 5 stars for quality/performance (so far) and minus 1 star for difficulty of installation.
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Craig
June 4, 2022
Rear end feels so much better. No vibration
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Anthony
May 24, 2022
Good price great product
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Anthony
May 24, 2022
Very nice product will serve me well and the price was good to
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Anthony
May 24, 2022
Very nice product will serve me well and the price was good to
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Philip
May 8, 2022
Great product really stiffened up the rear end.
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Raj
May 5, 2022
Very good product! You won't be disappointed.
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Keith
April 27, 2022
Easy weekend project.
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Zachary
April 24, 2022
My rear bushing was not even that bad but this one made a world of difference. 10/5 stars for sure
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Ammar
March 24, 2022
Good quality and nice performance
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Paul
March 22, 2022
These have held up very well to my abusive driving of a 500hp sr20 swapped 350z
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Sam
March 6, 2022
Great quality replacement, definitely recommend replacing old oem with these
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SAMNANG
February 20, 2022
Fits perfectly! Awesome experience.
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Robert
February 14, 2022
These bushings, coupled with Z1's subframe bushing collars, really helped firm up the drive train.
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Kevin
February 1, 2022
G37 sedan 6mt 166k mi. Instant difference. Got rid of the loud THUMP or CLUNK every time I engage or disengage a gear. Clutch engagement is MUCH easier and smoother now that the driveline isn't shaking as much due to the short bushings. My front two bushings wiggled in my hands and basically fell out, rear I tried the epoxy but it didn't solve my issue. These did. 10/10. Install was time consuming, but if I did it again it would take probably 4 hours. I did not have the tool. Tips:- Get a good jack and a friend for installing the diff. -Remove exhaust y pipe and Sway bar (sedan). -put in gear/ebreak to get axle/driveshaft bolts so it doesn't spin. -Torque wrench won't fit on 90% of the bolts so just go ham with your now buff-a$$ arms. -if Sawzall, just cut one line in Rear bushing sleeve, dont worry about cutting thru subframe it's super hardened steel and you can smooth it out later. Good luck, curse lots, enjoy the finished result!
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Kyle
January 19, 2022
Works great. Had it installed for over 3 years now. I haven't had any issues with 'sagging' or fatigue of the urethane bushings, as I've read from some others. It was a beast of a job... but its a great product. I didn't notice a difference when driving.
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Joseph
December 31, 2021
Great products well continue to buy things very great stuff very informative
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Demarcus
December 30, 2021
I used to ride around with the busted bushings thinking it was normal until I upgraded to the polyurethane ones and what a big difference it made. No excessive in noise cabin, no more wheel hop, you don’t hear the thud that was once there. Installation wasn’t bad, the differential puller makes the job way easier. I did it without it
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Angel
December 10, 2021
3 years and the bushings are still working as intended!
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Kenny
December 10, 2021
I love these part but am going to let z1 put them on an an looking future to shop some more
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Chandler
December 6, 2021
Huge difference in drivetrain feel. This paired with the differential bushing removal tool make this difficult job very manageable
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Nirav
November 21, 2021
Was a b*tch to get the old ones out, but these went in and work great. Definitely notice more stiffness in the rear.
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Gavino
November 16, 2021
i had a back clunking noise on acceleration and deceleration and i was thinking my drive train was bad and worried , changed this part out cause the old ones were busted and feels like a whole new z again
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Jose
November 13, 2021
Nice looking and better performance.
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Calvin
October 26, 2021
Had these on my diff now for several months and still happy to this day! Improved acceleration and no wheel hop. Compliments other poly bushings on the rear as well as the firmness from coilovers. Props to Z1 for making these tough but daily-able bushings!
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Julian
October 18, 2021
Definitely worth the money. Stopped the vibration and diff rocking in between gear changes.
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Royce
October 8, 2021
Installed on my G37s 6mt Coupe, well worth the money. A little performance boost & peace of mind to save your driveshaft & axles. Had a difficult time finding someone to install it. If you have to do the job yourself, buy the removal tool.
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Jan
September 19, 2021
Very good upgrade. Daily drivable.
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Jose
September 9, 2021
Awesome quality and fitment on point. Love it
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Fabian
September 4, 2021
Completely in love with these mod, changes the response of your acceleration. I really recommend getting the Z1's bushing remover.
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Jason
September 3, 2021
Fit my 2008 Infiniti FX35 perfectly!
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Daniel
August 30, 2021
I installed these a few years ago, and they are still working well!
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James
August 25, 2021
The bushings fit great and are a improvement on old worn out bushings.
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Riley
August 22, 2021
If you don’t have these you need them now. The difference between stock and Z1 poly is ridiculous.
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Jovon
August 18, 2021
Big difference you can feel.
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Chadrick
August 11, 2021
Yep another winner it makes your ride feel much more stable in the back.
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Russell
August 9, 2021
Do NOT go with the Whiteline bushing kit. The rear bushing was completely mangled within a year. Junk. These Z1 bushings seem MUCH MUCH better so far. Only had them in the car for a couple months but I have two track days on them so far. Seem excellent so far.
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Walter
August 6, 2021
It's what everybody else says. You have to feel it to believe it. The car just feels different in a good way. Makes you wonder why didn't Infiniti have this on the car originally. Wonderful work Z1 motorsports
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Anthony
August 6, 2021
even if you have to pay someone else to install this 100% worth changing out makes you feel so much better about every turn every shift.
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Roberto
July 26, 2021
Insane what a little thing like this does. The drive is so much more engaging. You literally can feel the difference.
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Anthony
July 24, 2021
I have a 2015 370z roadster this made the ride and feel so much better got rid of the squeaks I kept getting on every bump and even with a firmer ride I feel I have better control over what my car is doing
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Louis
July 12, 2021
Perfect fit quality product
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Christopher
July 11, 2021
Great product to replace factory gel filled bushing, only I gave mine away to someone in need before I could install it.
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Nathan
June 21, 2021
Easy to install! Removal of the stock bushings is a bit difficult. These are direct replacement and fit just as they should. The added amount of vibration from stiffness is minimal.
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Tony
June 14, 2021
Good quality product I would recommend
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Stephen
May 26, 2021
Along with the open diff Improved handling 100%
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Bryan
May 18, 2021
Recommend it! Very nice changes the driving experience
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Jay
May 16, 2021
These are great! Installed them about a week ago and I can feel the difference! Obviously mine were completely blown out and torn apart, but this Z1 product is reliable and is built to last! 10/10 recommend!
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Dhiren
May 16, 2021
Hard to believe such a small part can make such a big difference. The Z1 bush set has removed the play from the failed factory bush, fixed the juddery clutch engagement (which I initially thought was something unrelated) and also made finding traction much more predictable after getting the tail out. Have not noticed any increase in NVH. Well worth the price, and shipping to South Africa with FedEx was shockingly fast (+- 8 days).
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Alex
May 11, 2021
One of my favorite mods. Looks sick cuz it’s blue and definitely helped my diff
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Wyatt
May 11, 2021
Easy installation and havent had any issues since installed
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Travis
May 3, 2021
Yes get the tool, it is worth it completely. I luckily had a friend that let me borrow his. There is a huge difference with throttle response at least for me in my 05 G35 6mt. Yes, it might be a little louder in the rear end at higher speeds, just turn on music and you won't notice it. The hardest part of the job was getting the main old bushing out of the subframe. This job took me 3 days because the tool broke several times, the hardened acme bolt snapped in half. SO this might be expected. Definitely use lubricant when taking out/putting in. When you're ready for the new bushings PUT THEM IN THE FREEZER before it makes it a lot easier. They go in firmly and then once they warm up it fits perfectly. Bushings- 10/10, Z1 removal tool- 5/10 (expect the bolt might snap) but it definitely made it alot easier.
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Matt
April 27, 2021
Gave the rear end a nice firm feel, recommend buying the differential brace as well to eliminate wheel hop
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Albert
April 27, 2021
Haven't had any issues since I got mine installed. Hold up very well
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Philip
April 26, 2021
works great worth the upgrade. a few hours to install.
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Jordan
April 26, 2021
Didn’t buy the tool but even without it, install was pretty easy.
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Raul
April 26, 2021
Great product! I bought this for my G37S sedan and Coupe!
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Kyle
April 21, 2021
Honestly one of the best mods I’ve ever done to the car. Great product hands down !
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Marc
April 19, 2021
Great product, highly recommended by G/Z Motorsports in Quebec Delivery was quick and installation relatively easy Will definitely recommend Perfect for street and part time track Thank you
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Marco
April 18, 2021
My car feels completely solid now in the rear. I can take corners faster with less body movement. It’s not too stupid nor is it too soft polyurethane is a good neutral of stiff and soft just make sure you add lube when installing
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Christopher
April 15, 2021
Great bushings, can tell a major difference. Highly reccomend!
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Kareem
April 15, 2021
These bushing fit perfectly. Had no issues with them.
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Jamie
March 29, 2021
Hardest part is getting the OEM POS subframe diff bushing out. We used a Snap-On air chisel and after 30 mins or so eventually it gave in. Might be better to drill around the bushing first to get the center out then worry about the metal collar. Use some grease before pushing the Z1 subframe bushing and collar in. Feelin good!
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Damion
March 27, 2021
More stern.....however I do have upgraded transmission and motor mounts which may also help.
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Eric
March 21, 2021
These bushings are legit! The factory ones are junk infinity should be embarrassed by them as they wear out too fast. These Z1 are amazing. Perfect for street while stiff enough for the track.
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Hussain
March 18, 2021
it is a must for every z or g i Highly recommend it very excellent product
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Steve
March 17, 2021
Another great Z1 solution to a common issue. These definitely solved the issue with the worn and leaky diff bushings on my 350Z!!
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Aaron
March 13, 2021
These diff bushings are GREAT. I got them installed nearly a year ago in April 2020, and since then, they have been great. The differential is "planted" in the subframe now. Power transfer is better too.
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James
March 10, 2021
Tough instal for the diy guy but all said and done these bushing make my car feel so much better and responsive. Great upgrade for anyones z.
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Robert
March 9, 2021
If these go bad, you're either doing some extreme driving, living in extreme climates, or are using your car as a bartering ram! These should be the last set you'll ever need to replace or buy! Great material and very precise, when it comes to fitment! 2002/2003 350z Touring
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Stephen
February 24, 2021
Definitely feel an improvement. This was done at the same time I replaced subframe bushings. I can honestly say that I have not noticed any drivetrain nvh increase. Just a sharper or a more direct feel when accelerating(on any vector). All in all a more secure feeling as you are more able to detect wheelspin, and easier to control said wheelspin.
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Beau
February 13, 2021
Night and day better than stock, Low NVH and super easy to change now that the subframe bush is removed.
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Steve
February 12, 2021
I highly recommend these bushes for track or street use. They are firm enough to give better response in the drive train and don't break down under heavy use like the factory units do. I have been running these bushes in my drift car for a while now and the performance is outstanding I have solid sub frame bushings and these diff bushes don't transfer any excess noise or harsh vibration from the drivetrain and you don't have to worry about the main rear bushing breaking down and leaking fluid everywhere like the factory unit. I would suggest that every 350Z owner purchase and install these. Having had experience with OEM and various other brands of diff bushes on the market over the years in my opinion these are the best.
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Corey
February 11, 2021
Great product that fits great and stops that really wheel hop.
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Guy
February 11, 2021
Great mod! The back end feels like a tottaly different animal. The cars confidence is uplifting!
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Jeremy
February 5, 2021
Easy install and perfect fit. Sturdy, well-made and quality product. G37x rides great and very smooth. Highly recommend to replace the factory bushings.
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Ashton
February 5, 2021
One of the best bushings on the market, before i installed these, i had a horrible diff clunk. I paired these with a a bell race works diff brace and a z1 diff cover and my rear end feels smoother than ever
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Matthew
January 28, 2021
So far so good idk how long it’ll last but I do see some flexing when off and on throttle
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Conner
January 26, 2021
Great product!! Eliminates diff movement while making it still a smooth ride!! Great quality!
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Spencer
January 25, 2021
Installed these on a G35 and it fixed the terrible thud that used to be there at every shift. Now power delivery is sharper without being uncomfortable. Definitely recommend getting the removal tool with it for the job.
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Richard
June 10, 2020
Fits EX35 perfectly. No more leaking on my driveway. Very fast and efficient shipping to Canada. Thank You.
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Adam
April 26, 2020
First off, these bushings are amazing. My shifts are now consistent and crisp. Feels so solid and well put together. Like a whole new car. The guys at z1 were also very helpful.
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Joshua
December 14, 2019
Bought these and after install I can say, I don't know how I could ever drive my Z without this upgrade, just did the subframe collars and wow what a difference! Getting the motor and transmission mounts next, as I can imagine how much of an improvement they will make!
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Adam
November 13, 2019
This is a must have makes the car put power down so much better. I did this along with the sub frame inserts and the wiggle under acceleration in the rear end is gone. There is a little more vibration but totally worth it for the driving experience.
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Lance
July 28, 2019
I've had these for over a year now and they're still holding up great. It was a huge pain to get the old bushings out since I didn't get the removal tool, but it was well worth the effort.
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Derek
July 18, 2019
10/10! These are great. I haven't found a bad product from Z1 yet! I decided to replace all 3 diff bushings with these after noticing the dreaded black tear of death coming from the stock bushing on my rear subframe. They are working great and certainly made the rear end feel much more planted and confidence inspiring. No more clunk in the drivetrain when going from coast to acceleration either. Before the rear end of the car would wiggle a bit during hard turns. It felt almost as it the sidewall of the tire was folding over or something... but that was obviously not the case. Now it performs perfectly. I don't have a huge knowledge or background in mechanics and this was definitely the biggest job I have taken on, but with the help of the instructions and a few youtube tutorials on how to get the bushings out (drill, burn, cut, hammer, repeat) I was able to do it by myself in my driveway. 2 people is helpful for lowering and raising the rear diff. Everything else can be done by one person with some simple tools and patience.... or just get a shop to do it and save yourself a few days and some busted knuckles.
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Eric
April 21, 2019
2012 G37xS - 7AT - 53,421 miles Infiniti Factory Certified Technician I was experiencing vibrations at idle in drive, a significant delay transferring power at launch and even some delay between shifts. The rear bushing was not leaking yet however there was a good amount of play observed in all the rear differential bushings when brake torquing. Took a chance on this kit and was not disappointed. Vibrations at idle are gone. Launch is snappier and shifts feel more defined. No noticeable increase in NVH whatsoever. I do not usually install performance mods, however Infiniti does not sell these bushings separately from the rear $900 subframe. It made sense to replace these bushings with stiffer longer lasting polyurethane because they were bad after only 50k miles. These bushings work as advertised. The kit and even the install instructions are well thought out. Very happy with the result. Note: I will update this review after 10k miles with any noticeable increases in NVH and whether or not they will require periodic re-greasing.
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Samuel
February 14, 2019
Please don’t hesitate to purchase this bushing especially if your factory ones are done for. My G feels brand new again way more power transfer. Got myself the full set and couldn’t be more satisfied. Thanks Z1 just ordered the poly urethane motor mounts as well can’t wait
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Stephen
January 3, 2019
i bought these months ago but only just now got around to fitting them as i was put off by everything i keep reading about how hard they are to change,well just man up and do it, i did it on jack stands in my garage and i think my arms grew a few inches from pulling on the ratchet so hard to pull that dam old bushing sleeve out, i don't notice any more noise from the back end just more traction but i do have test pipes and a full fast intentions system so its hard to hear anything anyways
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Denis
May 24, 2018
I recommend to change the rear end subframe bushings at the same time with the differential bushings and transmission bushing. It took me 4 hours to dismount the old bushings with the right tools. Suggestion : Go to your garage if your are not well equipped in tools. But at the end, my results on track is very convincing (-8,8 sec on a 2 miles track) just with those upgrade. Great job Z1. The oversteer is now in control.
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Matt
April 11, 2018
Made the rear end of the car feel brand new and well planted. Huge difference in feel for an easy price. The install took awhile but it wasn’t as hard as others made it out to be.
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Tyler
February 18, 2018
I won't lie, the factory bushings suck to remove even with the proper tools hahaha, but this kit is well worth it. By far the most cost effective of the differential bushings. The main rearward bushings is very thick and has a lot of surface area in the subframe. the 370 has a steel rear subframe so I opted for the air hammer route, great for the front bushings not so much the main which basically exploded in my face when I started air hammering it, ew. If you plan to do this yourself, BUY THE INSTALLATION AND REMOVAL TOOLS. The difference is immediate after installation. Less hesitation and shudder during clutch engagement, I was amazed to see the shudder/jerk from throttle lift during city driving was significantly reduced practically gone, the whole rear end of the car feels way more confident and stable. There is some added coarseness and vibration but it is to be expected when removing the goo filled mounts. its completely tolerable once you realize it's just normal and I say tolerable but its not even that bad. Strongly recommend to any real enthusiast, if you aren't a very experienced mechanic dont bother with these. Exhaust, bracing, differential all HAVE to come down and the diff is heavy! very awkward to remove by yourself. I also live in NH so corrosion can be an issue for bushing removal, it may be significantly easier for people in southern states.
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Dmitriy
July 20, 2017
2011 Non-Sport 370Z @ 63,000 miles - replaced all 3 (including main faulty) Rear Differential bushings with these and my Z feels like new during launch and downshifting! Immediately noticeable difference. Absolutely recommended if you are experiencing a significant amount of rocking or the noticeable 'wheel-hop'. Nissan Service Center installed the parts and stated the original bushing was tough to remove but would have been much more difficult without the removal tool, which I also recommend. Thank you Z1 Motorsports!
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Judah
March 17, 2017
So I will say this.... this bushing set makes such a beautiful difference! Deffinitely an amazing upgrade... No more Wheel hop is accurate but also a lot more crisp shifting with a huge improvement in feel when launching, could have ordered from plenty of other companies but Z1 is offering newer technology with a lot of R&D in a product that works!