Description
Richmond Gear 49-0040-1 3.90 ring and pinion for the GM 8.875″ is the result of over 80 years of research and development of differential gears. Extensive testing is performed on all Richmond products which means they are engineered to perform faster and reliably, which is why they have been winners at the Daytona 500 and U.S. Nationals for decades!
This is a THICK gear set which means it does not use the same carrier as a standard set of GM 8.875″ 3.90 gears.
- Fits 3.07 to 3.73 ratio carrier.
- Warranty: 1-year limited
- Tooth count: 39/10