Motive Gear GM10-373A Differential Ring and Pinion

If you're looking to enhance the performance of your GM vehicle, the Motive Gear GM10-373A is a top-tier choice for those who demand durability and precision. This A-Line Differential Ring and Pinion set is designed to deliver optimal power transfer and performance across a variety of applications, whether you're hitting the trails or cruising on the highway.

Why Choose Motive Gear?

Motive Gear is renowned for producing some of the toughest drivetrain components available. With years of racing development and rigorous testing by in-house engineers, you can trust that these parts are built to withstand the rigors of performance driving. Many racers around the globe rely on Motive Gear products, making them a staple in the winner's circle.

Key Features

• California Proposition 65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
• Differential Carrier Break: 2.73 and Higher
• Ring Gear Diameter: 8.5 inches
• Ring Gear Bolt Quantity: 10 bolts
• Cover Bolt Quantity: 10 bolts
• Pinion Shaft Diameter: 1.626 inches
• Ring Gear Tooth Quantity: 41 teeth
• Pinion Spline Count: 30 splines
• Ring and Pinion Gear Ratio: 3.73
• Ring Gear Rotation: Standard
• Pinion Gear Tooth Quantity: 11 teeth
• Differential Case Design Type: GM 8.625
• Ring Gear Material: 8620 Steel

Fitment

The GM10-373A is compatible with a wide range of GM vehicles, including:

• Buick Apollo (1973-1975)
• Buick Electra (1971-1990)
• Chevrolet Silverado 1500 (1999-2020)
• GMC Sierra (1999-2020)
• Cadillac Escalade (1999-2000 & 2002-2013)
• Oldsmobile Cutlass (1970-1977)
• Pontiac Firebird (1971-1981)

Installation Notes

This ring and pinion set is designed for use with GM 8.5"/8.625" (10 Bolt) differentials and requires a carrier with a ratio of 2.73 or numerically higher. It's intended for rear differential positions.

Customer Feedback

One Chevrolet Silverado 1500 owner shared, "I installed the GM10-373A and it completely transformed my truck's acceleration. The power delivery is smooth, and I noticed a significant improvement in towing capacity!"

Another Buick Regal enthusiast noted, "The installation was straightforward, and the performance upgrade was immediately noticeable. I can’t believe the difference it made in my ride!"