Revolution Gear & Axle GM 10-Bolt 8.5in/8.6in 4.10 Ratio Face Hobbed Ring & Pinion Set

The face hobbing process used on these Revolution Gear & Axle ring and pinion gears means the gear teeth are cut with a hobbing machine that uses a rotating cutter. This advanced method creates a more precise tooth profile compared to traditional methods, which translates to improved strength and a quieter, smoother-running differential. This set is designed for GM 10-bolt 8.5-inch and 8.6-inch axles, featuring a 4.10 gear ratio.

A 4.10 ratio is a popular choice for vehicles that see a mix of highway driving and off-road use or towing. It offers a good balance, providing better acceleration than stock gears while still keeping engine RPMs at a reasonable level on the highway. This set is well-built for durability, ensuring it can handle the demands of daily driving and more spirited use. When installing a new ring and pinion, it's crucial to follow the manufacturer's instructions for proper gear pattern setup and break-in procedure to ensure longevity and optimal performance.