This is a Used (VTC) Intake Cam Gear found on all VG30DE(TT) engines in all '90 - '95 Z32's. These should not leak oil and have all been pulled from running engines however there is no way to guarantee that they will not have the notorious VTC Rattle.
If you are using Upgraded Cams or are trying to eliminate the VTC Rattle we recommend using the BDE Performance VTC Gears as these are the most worry free replacement available.
These did differ in certain years so please select your engines year from the options below.
Good Used Exhaust Cam Gears can be found HERE.