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

Heavy Duty aluminum frame with scuff-resistant sides

allowing for better electrical conductivity and bulletproof reliability

3/4" 30-Spline

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

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