Dorman 976-721 Drive Shaft - Rear

Dorman 976-721 Drive Shaft for Silverado and Sierra

Dorman 976-721 is a complete rear drive shaft assembly for select Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It arrives pre-balanced and built with new yokes, steel tubing, universal joints, and a slip yoke for a direct replacement path on the listed vehicles.

Key Features

• Complete drive shaft assembly for rear applications
• Pre-balanced for installation readiness
• 100% new yokes, tubes, and universal joints
• Steel shaft construction with 3-inch diameter
• Greaseable design for serviceability
• Adjustable overall length for listed fitments
• Slip yoke end and U-joint end configuration

Detailed Description

This Dorman drive shaft replacement is built for 2014-2017 Chevrolet Silverado 1500 and 2014-2017 GMC Sierra 1500 rear applications with the specified axle ratio codes. Part number 976-721 uses steel construction, a 0.083-inch wall thickness, and a compressed length of 99.875 inches with a 101.875-inch drive shaft length. It is supplied as a complete assembly with universal joints included and no CV joints, making it a straightforward option when replacing a worn or damaged rear driveshaft on these trucks. This part cross-references OE number 22760962 for the same application.

What This Drive Shaft Helps Address

• Vibration from a worn or out-of-balance rear driveshaft
• Clunking or driveline noise from worn universal joints
• Driveline play caused by damaged yokes or tubing
• Service issues on greaseable driveline components
• Replacement needs after shaft damage or corrosion

Installation Notes and Tips

Verify axle ratio and rear application before installation. This part is listed for 2014-2017 Chevrolet Silverado 1500 rear with RPO GU4 (3.08), GU5 (3.23), or GU6 (3.42), and 2014-2017 GMC Sierra 1500 rear with the same RPO-specific notes. Confirm overall length and end configuration against the original shaft before removal. Because the assembly is adjustable in overall length, careful measurement during installation helps ensure proper driveline alignment and fit.

Quality Assurance

Dorman supplies this drive shaft as a complete replacement assembly with new core components and pre-balanced construction for the listed applications. Part number 976-721 is engineered to replace the original rear driveshaft on the specified Silverado 1500 and Sierra 1500 configurations.