Rear 3.73 Ring and Pinion Gear Bearing Package Fits GM 8.5" 28 Spline 10 Bolt

Rear 3.73 Ring and Pinion Gear Bearing Package for GM 8.5 Inch 10 Bolt

This rear ring and pinion gear set with bearing package provides a 3.73 ratio for GM 8.5 inch 10 bolt axles with 28 spline pinion, allowing a differential rebuild or ratio change.

Overview

This ring and pinion gear bearing package delivers a 3.73 ratio for GM 8.5 inch 10 bolt rear axles. The set pairs a matched ring and pinion with the bearings needed to support a differential rebuild or gear ratio change. It suits owners servicing a 28 spline pinion axle who want dependable gearing for street or work use.

Built For Performance

• 3.73 gear ratio for a balance of acceleration and highway cruising
• Matched ring and pinion gear set for consistent tooth contact
• Bearing package included to support the install
• Designed for GM 8.5 inch 10 bolt axles
• 28 spline pinion configuration

Fits These Machines

• for GM 8.5 inch 10 bolt rear axles with 28 spline pinion

On-The-Job Use

• Differential rebuilds on GM 8.5 inch 10 bolt axles
• Changing rear gear ratio for towing or performance goals
• Replacing worn or noisy ring and pinion gears
• Restoring drivetrain smoothness on higher mileage vehicles

Specs At A Glance

Good To Know

Q: Does a gear install require setting backlash and pinion depth? A: Yes, ring and pinion installation requires measuring and setting backlash and pinion depth. Proper setup tools and a dial indicator are needed for a quiet, durable result.

Q: Should gear break-in oil be changed after installation? A: A fluid change after the initial break-in miles is commonly recommended for new gears. Follow the gear manufacturer break-in guidance and use the specified fluid.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.