GearFX only uses the highest quality components in our builds. US Gear is one of the top brands in the United States, made in the USA. We offer this GM 12 Bolt Car ring and pinion in many different ratios.
REM Isotropic Surface Finishing is available upon request. GearFX Driveline is proud to be an Authorized REM Facility. Since 2007, our expertly-trained staff have utilized state-of-the-art REM equipment to deliver the industries best polishing services.
- Material 8620 – Standard OE Material
- Ring Gear Diameter 8.875″
- Ring Gear Bolts 12 – 3/8″x24RH
- Cover Bolts 12
- Carrier Breaks 2.76 / 3.08 – 3.90 / 4.10
- Pinion Shaft Diameter 1.625″
- Spline 30
- Ratio 4.11
- Tooth Count 9-37