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Dorman 976-770 Drive Shaft - Rear
| Brand | Dorman 976-770 |
|---|---|
| Position | Rear |
| Compressed Length | 95.25 |
| End 1 Type | Slip yoke |
| End 2 Type | U-joint |
| Shaft Material | Steel |
| Universal Joints Included | Yes |
| CV Joints Included | No |
| Grade Type | Regular |
| Shaft Diameter | 3.5 |
| Slip Yoke | Yes |
| Axle Nut Included | No |
| Drive Shaft Length (In) | 97.25 in |
| Drive Shaft Wall Thickness (In) | 0.083 in |
| Greaseable Drive Shaft | Yes |
| Overall Length Adjustable | Yes |
| Package Contents | 1 driveshaft |
| Fits | Chevrolet and GMC · 6 vehicles |
Complete assembly. Pre-balanced and ready to install with all-new yokes, tubes, and joints.
Steel construction. Built with a steel shaft for dependable driveline strength.
Greaseable design. Allows routine servicing to help maintain smooth operation.
Cross-references 20914859 for the same application. See all 1.
Dorman 976-770 Rear Drive Shaft
Dorman 976-770 is a complete rear drive shaft assembly for select Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD applications. It arrives pre-balanced and built with new yokes, tubes, universal joints, and a slip yoke for a direct replacement approach on the rear driveline.
Key Features
- Complete drive shaft assembly for rear applications
- Pre-balanced for installation readiness
- Steel shaft construction with 3.5 in diameter and 0.083 in wall thickness
- Slip yoke end and U-joint end configuration
- Greaseable design with universal joints included
- Overall length adjustable for proper driveline setup
- Drive shaft length: 97.25 in; compressed length: 95.25 in
- Part number: 976-770
Detailed Description
This Dorman drive shaft is built for rear driveline replacement on 2011-2013 Chevrolet Silverado 2500 HD and 2011-2013 GMC Sierra 2500 HD models with axle IDs AAF5, AAHG, AAN5, KAF3, or SF7. The assembly uses steel construction and includes new tubes, yokes, and universal joints to simplify service while restoring driveline function. Dorman 976-770 is also cross-referenced to 20914859 for the same application.
For buyers searching for a rear drive shaft for 2011-2013 Silverado 2500 HD or 2011-2013 Sierra 2500 HD, this assembly provides the key dimensions and end types needed for a proper replacement. The greaseable design supports routine service, and the adjustable overall length helps with driveline fitment during installation.
What It Helps Fix
- Vibration from a worn or out-of-balance rear driveshaft
- Clunking or driveline noise from worn U-joints
- Excess play caused by damaged yokes or shaft components
- Service issues related to a bent, corroded, or fatigued steel shaft
- Fitment problems when replacing the original rear drive shaft assembly
Installation Notes and Tips
Verify axle ID and vehicle configuration before ordering. This part is listed for the rear position on 2011-2013 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD models with the specified axle codes. Confirm overall length, end type, and shaft diameter against the original driveline before installation. Because the assembly is greaseable, follow standard lubrication intervals after service.
Quality Assurance
Dorman supplies this as a complete replacement drive shaft assembly with new core components and pre-balanced construction for service-ready installation. Part number 976-770 is engineered for the listed Silverado 2500 HD and Sierra 2500 HD rear applications.
| Year | Make | Model | Body Type | Bed Length | Drive Type | Transmission | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2013 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | 8' 1" Foot Bed | 4WD | Automatic | 167.7" | Rear | ID AAF5, AAHG, AAN5, KAF3, SF7 |
| 2013 | GMC | Sierra 2500 HD | Crew Cab Pickup | 8' 1" Foot Bed | 4WD | Automatic | 167.7" | Rear | ID AAF5, AAHG, AAN5, KAF3, SF7 |
| 2012 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | 8' 1" Foot Bed | 4WD | Automatic | 167.7" | Rear | ID AAF5, AAHG, AAN5, KAF3, SF7 |
| 2012 | GMC | Sierra 2500 HD | Crew Cab Pickup | 8' 1" Foot Bed | 4WD | Automatic | 167.7" | Rear | ID AAF5, AAHG, AAN5, KAF3, SF7 |
| 2011 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | 8' 1" Foot Bed | 4WD | Automatic | 167.7" | Rear | ID AAF5, AAHG, AAN5, KAF3, SF7 |
| 2011 | GMC | Sierra 2500 HD | Crew Cab Pickup | 8' 1" Foot Bed | 4WD | Automatic | 167.7" | Rear | ID AAF5, AAHG, AAN5, KAF3, SF7 |
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