4.10 8.5in 10 Bolt GM

The Richmond 4.10 8.5in 10 Bolt GM ring and pinion gear set is designed for high-performance and street rod differentials, providing enhanced acceleration and torque multiplication for vehicles with GM 8.5-inch housings. This gear set is ideal for muscle car builders, classic car restorers, and truck enthusiasts looking to improve their drivetrain's performance.

Manufactured to OEM specifications, the Richmond gear set features precision-cut spiral bevel gears that evenly distribute load across the gear face, reducing noise and extending service life. The 4.10 gear ratio allows the engine to turn 4.10 revolutions for every one revolution of the wheel, which enhances torque and engine braking while sacrificing some top-end efficiency—a trade-off for improved acceleration response.

This gear set is compatible with most GM performance differentials and locking mechanisms, making it a versatile choice for various applications. Street racers, hot rod builders, and truck enthusiasts will appreciate the quicker off-the-line performance that this gear set provides, ensuring a more engaging driving experience.