Revolution Gear & Axle GM10-373DC 3.73 Ratio Ring & Pinion Set for GM 8.5"/8.6"

Vehicle Fitment

• GM vehicles equipped with 8.5" or 8.6" 10-Bolt rear (or front) differential housings - verify axle code, spline count, cover pattern and rotation before ordering.

Features

• 3.73 :1 gear ratio, ideal for large-tire, towing or upgraded vehicle use.
• Precision-machined ring & pinion gear set manufactured from premium alloy steel and heat-treated for durability and long life.
• Face-hobbed (or dry 2-cut) gear-cutting process for quieter gear engagement and smoother operation.
• Standard-rotation design (unless otherwise specified) for many GM 10-Bolt housings.
• Designed for rebuilds, performance upgrades or replacement in mixed-use, street/4WD or off-road applications.
• Includes ring gear bolts or provisions for reuse of OEM bolts depending on kit version.
• Backed by a 2-year limited warranty covering manufacturing defects of the gear set.
• Broad compatibility and value upgrade option for GM 10-Bolt users seeking stronger gears and optimal ratio.

Specifications

• Gear ratio: 3.73 :1
• Ring gear diameter: 8.5" / 8.6" (GM 10-Bolt specification)
• Material: Alloy steel (heat-treated)
• Rotation: Standard (unless specified reverse in product variant)
• Warranty: 2-year limited warranty on major gear components

Included Components

• 1x Ring gear and pinion gear set (3.73 ratio)
• Ring gear bolts (if included) or instructions for reuse of existing bolts
• Installation instruction sheet with gear-setup specification guidelines

Product Description

The Revolution Gear & Axle GM10-373DC ring & pinion set is engineered for GM vehicles using the 8.5" or 8.6" 10-Bolt differential housing. With a 3.73 :1 ratio, it offers a strong balance of drivability, performance and tire compatibility - particularly beneficial for users upgrading tire size, towing or operating under added load.

Manufactured with high-quality alloy steel and precision gear-cutting, the set promotes smooth engagement, quiet operation and long-term durability. Ideal for rebuilds or upgrades, the GM10-373DC requires verification of your differential housing size, bolt-pattern, spline count and rotation direction before purchase. This ratio upgrade is suited for drivers seeking performance-enhancing gearing without sacrificing street usability or longevity.