Revolution Gear & Axle GM10-410DC 4.10 Ratio Ring & Pinion for GM 8.5" 10-Bolt

Vehicle Fitment

• Fitment for GM 8.5" / 8.6" 10-bolt differential housings (1970 and up GM applications) - verify axle dimensions, bolt count and housing before purchase.

Features

• 4.10 final-drive ratio for GM 8.5"/8.6" 10-bolt rear differentials
• Manufactured with "Dry 2-Cut" gear-cutting process for quieter operation and improved durability
• Constructed from high-quality alloy steel, heat treated to OEM standards
• Improved contact pattern and surface finish over standard aftermarket gear sets
• Designed for street, towing and moderate off-road use in GM 10-bolt rear ends
• Backed by a 2-year limited manufacturer warranty against defects

Specifications

• Gear ratio: 4.10
• Ring gear rotation: Standard (non-reverse)
• Compatible housing: GM 8.5" / 8.6" 10-bolt
• Material: Premium alloy steel, heat treated
• Warranty: 2-year limited

Included Components

• 1x Ring gear
• 1x Pinion gear
• Ring gear bolts **not included** - reuse factory bolts or purchase separately

Product Description

The Revolution Gear & Axle GM10-410DC 4.10 Ratio Ring & Pinion set is engineered for GM vehicles equipped with the 8.5" or 8.6" 10-bolt rear differential. This ratio gives a balance between highway drivability and performance, reducing engine RPM at cruise while maintaining strong torque and drivetrain reliability. The Dry 2-Cut manufacturing process ensures quiet operation, smoother gear engagement and longer service life compared to standard face-milled gear sets.

Installation requires removal of the differential carrier, correct setup of backlash, gear pattern and preload. While this kit covers GM 8.5"/8.6" 10-bolt housings in various makes and years, you must verify your specific housing width, bolt pattern, ring gear diameter, and existing ratio before purchase. The kit includes the ring and pinion only; ring gear bolts must be reused or purchased separately.