4.10 12 Bolt GM Pass

The 4.10 12 Bolt GM Pass ring and pinion gear set from Richmond is designed for serious GM rear axle upgrades, particularly for those seeking enhanced acceleration and towing performance. This Richmond differential package is ideal for builders and enthusiasts who require reliable gear reduction for performance applications, including street racing and towing.

Manufactured to tight tolerances, Richmond's ring and pinion sets feature precision-cut teeth that minimize backlash while maximizing strength under load. The 4.10 gear ratio is engineered to improve acceleration and pulling power, making it a valuable upgrade for those looking to enhance their vehicle's performance. This gear set integrates seamlessly into GM 12-bolt rear housings with standard differential carrier bores.

Ideal for mechanics and DIY builders, this ring and pinion set is compatible with specific GM models, including the 1964–1972 Chevelle, Nova, Camaro, and full-size Chevy platforms fitted with 12-bolt rears, as well as Pontiac, Buick, and Oldsmobile vehicles. Weighing 17.4 lbs, the complete set is compact enough for straightforward installation during a rear-end rebuild.