Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
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Motive Gear 8.50-Inch Rear Axle Ring and Pinion Gear Kit; 3.73 Gear Ratio (99-26 Sierra 1500)Find parts that fit my vehicle
Item S525675
Our Price
$285.46 kit
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Product Information
Features, Description, Q&A, Specs & Installation
Features
- App Model GM 8.5, GM 8.625
- Cover Bolt Quantity 10
- Differential Carrier Break 2.73 Ratio And Higher
- Differential Case Design Type GM 8.5, GM 8.625
- Gear Ratio 3.73
- Pinion Gear Tooth Quantity 11
- Pinion Shaft Diameter 1.626 Inch
- Pinion Spline Count 30
- Position Front, Rear
- Ratio 3.73
- Ring Gear Bolt Quantity 10
- Ring Gear Material 8620 Steel
- Ring Gear Outside Diameter 8.5 Inch
- Ring Gear Rotation Standard
- Ring Gear Tooth Quantity 41
- Taxonomy A LD Differential
- Taxonomy B Ring And Pinion
- Taxonomy C Front, Rear
- Taxonomy D 3.73
- Fits 99-26 Sierra 1500
Description
Premium Replacement Component. The Motive Gear 8.50-Inch Axle Ring and Pinion Gear Kit with a 3.73 gear ratio is designed to restore or upgrade your vehicle’s differential gearing with precision and strength. This kit ensures reliable power transfer from the driveshaft to the wheels by maintaining proper gear ratios and durability under demanding conditions.
Construction and Appearance. Manufactured from 8620 steel, the ring gear offers exceptional wear resistance and durability. The components are engineered to OEM specifications with a standard ring gear rotation and finished to precise tolerances for a proper fit and long service life. The robust construction includes a 1.626-inch diameter pinion shaft with 30 splines and hardened gear teeth for dependable performance.
Installation. Installation requires professional knowledge of differential gear setup and specialized tools. The kit is designed for direct replacement with a 10-bolt cover on both front and rear positions with no drilling or modifications necessary, but precise setup and adjustment are critical to ensure proper operation.
Warranty. Includes a 1 Year or 50,000 Mile limited warranty for peace of mind.
Application. Specifically fits 1999 to 2026 Sierra 1500 models equipped with GM 8.5- or 8.625-inch 10-bolt axles requiring a 3.73 gear ratio setup. No additional exclusions apply.
Motive Gear GM10-373A
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Install Details & What's in the Box
Installation Info
What's in the Box
- (1) Ring and Pinion Gear Kit
- Mounting Hardware
4.7
Reviews of Motive Gear Drivetrain Products (28)
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