Richmond Ring and Pinion Set - 4.88 12 Bolt GM Pass 2010419 This regulator features Aeromotive's high-flow

This regulator features Aeromotive's high-flow design

4-1/4 x 9-1/2 in Oval Body

669 in Closed Diameter

Tach Signal Filter

There is a little bit of styling in the headlight area

Richmond Ring and Pinion Set - 4.88 12 Bolt GM Pass 2010419 This regulator features Aeromotive's high-flowProduct Description: Ring and Pinion Pro Gear 4. 88 Ratio 30 Spline Pinion 4 Series 8. 875 in GM 12 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