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Dorman 976-990 Drive Shaft - Rear
| Brand | Dorman 976-990 |
|---|---|
| Position | Rear |
| Compressed Length | 88.125 |
| End 1 Type | Transmission 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) | 90.125 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 · 4 vehicles |
Complete assembly. Pre-balanced and ready to install with all-new yokes, tubes, CV joints, and universal joints.
Steel construction. Built with a steel shaft for dependable driveline strength.
Adjustable length. Overall length is adjustable for a more precise fit.
Cross-references 15711983 for the same application. See all 1.
Complete Rear Driveshaft Assembly
Dorman 976-990 is a complete drive shaft assembly for rear applications on select Chevrolet Silverado 2500 and GMC Sierra 2500 trucks. It arrives pre-balanced with new yokes, tubes, universal joints, and slip yoke components to simplify replacement and restore driveline function.
Built with a steel shaft, 3.5-inch diameter, and 0.083-inch wall thickness, this assembly is made for direct replacement service on 1999-2000 Chevrolet Silverado 2500 and 1999-2000 GMC Sierra 2500 rear driveline applications. The overall length is adjustable, and the shaft is greaseable for service access.
- Fits 1999-2000 Chevrolet Silverado 2500, rear
- Fits 1999-2000 GMC Sierra 2500, rear
- Pre-balanced complete drive shaft assembly
- 100% new yokes, tubes, and universal joints
- Steel construction with slip yoke included
- Greaseable design for maintenance access
- Adjustable overall length for application matching
Detailed Product Overview
Dorman 976-990 is a replacement driveshaft assembly engineered for rear driveline service on the Chevrolet Silverado 2500 and GMC Sierra 2500. It uses a transmission yoke on one end and a U-joint on the other, with universal joints included and no CV joints. The compressed length is 88.125 inches and the drive shaft length is 90.125 inches, supporting a direct-fit replacement approach for the listed trucks. This part cross-references OE application number 15711983 for the same application.
Common Problems This Part Can Address
- Vibration from a worn or out-of-balance driveshaft
- Clunking or driveline noise from worn U-joints
- Excess play from damaged yokes or shaft components
- Service issues caused by corrosion or fatigue in the original shaft
- Fitment concerns when replacing a damaged rear driveshaft on Silverado 2500 or Sierra 2500 trucks
Installation Notes
Verify compressed length, overall length, end types, and rear application before installation. Confirm the shaft diameter, wall thickness, and slip yoke configuration match the vehicle’s driveline requirements. Inspect related driveline components, including mounts and companion parts, before final assembly and road testing.
Quality Assurance
Dorman supplies this assembly as a complete replacement driveshaft with new core components and pre-balanced construction for installation readiness. The part number is 976-990.
| Year | Make | Model | Body Type | Bed Length | Drive Type | Transmission | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2000 | Chevrolet | Silverado 2500 | Extended Cab Pickup | 6' 6" Foot Bed | RWD | Automatic | 143.5" | Rear | — |
| 2000 | GMC | Sierra 2500 | Extended Cab Pickup | 6' 6" Foot Bed | RWD | Automatic | 143.5" | Rear | — |
| 1999 | Chevrolet | Silverado 2500 | Extended Cab Pickup | 6' 6" Foot Bed | RWD | Automatic | 143.5" | Rear | — |
| 1999 | GMC | Sierra 2500 | Extended Cab Pickup | 6' 6" Foot Bed | RWD | Automatic | 143.5" | Rear | — |
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