GM Ring and Pinion Gear Set GM 8.5 Inch in a 3.90 Ratio USA Standard Gear
ZG GM8.5-390
USA Standard ring and pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring and pinion sets for a variety of common and hard to find applications.
- Fits GM 8.5 inch and 8.6 inch
- 8.50 Inch Ring Gear Diameter
- 30 Spline Pinion
- 10 ring gear bolts
- 3.90 ratio
1 year warranty against Manufacturer defects