Richmond Ring and Pinion - 39 Spline Pinion - 7.5" - GM 10 Bolt Battery Disconnect whether on the track or

whether on the track or on the street

1963-1966 Oldsmobile Dynamic

Diverter / Hardware Included

12-848 is recommended

DEI Turbo Shields are used to maintain a more consistent temperature in the turbo

Richmond Ring and Pinion - 39 Spline Pinion - 7.5" - GM 10 Bolt Battery Disconnect whether on the track orProduct Description: Ring and Pinion 3. 55 Ratio 39 Spline Pinion 7. 5 in GM 10 Bolt Richmond Gear is famed for their tough and reliable ring and pinion sets. That same level of reliability and precision is available in their other driveline products, including differentials, racing Transmissions, driveshaft components, and more. Racecars around the world rely on Richmond premium gearsets and Transmissions; your hotrod will run better than new with