These are a quality diff gear made by Motive Gear USA. The absolute best "bang for buck" mod you can do to your car! Get faster acceleration without touching your engine!

Motive Gear is a manufacturing industry leader in professional quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Motive Gear performance products can often be found in the winner's circle at NHRA, IHRA, ANDRA, SODA, SCORE, and NASCAR events. Motive Gear ring and pinion sets are available in a wide range of ratios for most applications. Computer-controlled heat treatment, index tooth spacing, and CNC machining all go into Motive Gear Performance series gear sets.

These are brand new quality items - don't be fooled by cheap inferior or secondhand gearsets that give troubles and have strength issues.

Specifications:

• Motive Performance Ring & Pinion Series 4.11 Gear Set
• Part number G80411
• Central Contact Pattern
• CNC manufactured from start to finish
• Computer Controlled Heat Treatment
• Double Lapped
• Index tooth spacing
• 12 month warranty

Fitment Notes:

• Suitable for all M80 Differential VT VX VY VZ Holden Commodore & HSV.
• Fits M80 ONLY as per VT2 VX VY VZ V8 only.
• Will not fit One Tonner or Crewman or Adventra or VT1 V8 models or any V6 models.