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Dorman 986-665 Drive Shaft - Rear
Dorman 986-665 Drive Shaft for Silverado and Sierra
Dorman 986-665 is a complete rear drive shaft assembly for select 2019-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 models. It is pre-balanced for installation and built with new yokes, tubes, universal joints, and CV joints excluded as specified.
Key Features
- Complete drive shaft assembly for rear applications
- Pre-balanced for direct installation
- 100% new yokes and tubes
- Universal joints included
- Aluminum shaft construction
- Slip yoke end 1 and bolt-on end 2
- 78.625 in compressed length
- 4 in shaft diameter with 0.083 in wall thickness
Detailed Description
This Dorman drive shaft, part number 986-665, is a standard replacement assembly for rear driveline service on 2019-2022 Chevrolet Silverado 1500 and 2019-2022 GMC Sierra 1500 trucks. The aluminum shaft is built to the listed compressed length of 78.625 inches and uses a slip yoke at one end with a bolt-on connection at the other, making it a direct-fit solution for the specified rear position. Dorman 986-665 is engineered as a complete assembly with new yokes, tubes, and universal joints to simplify driveline replacement.
This part cross-references GM OE numbers 84186831 and 84907490 for the same application.
Common Problems This Part Can Address
- Vibration from a worn or out-of-balance rear driveshaft
- Clunking or driveline noise from worn universal joints
- Damage to the shaft tube or yokes
- Fitment issues after driveline service on Silverado 1500 or Sierra 1500 rear applications
- Loss of smooth power transfer through the rear driveline
Installation Notes and Tips
Verify rear-position fitment before installation on 2019-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 models. Confirm the compressed length, end types, and shaft diameter match the original driveline configuration. Inspect mating surfaces and driveline hardware condition during replacement, and follow factory service procedures for alignment and torque specifications.
Quality Assurance
Dorman supplies this drive shaft as a standard replacement assembly with new core components and pre-balanced construction for the listed applications. Part number 986-665 is built to match the specified rear driveline fitment for Silverado 1500 and Sierra 1500 service.
| Brand | Dorman |
|---|---|
| Part Number | 986-665 |
| Compressed Length | 78.625 |
| 10920 | No |
| 10920 | Non |
| End 1 Type | Slip yoke |
| End 1 Type | Yugo deslizante |
| End 2 Type | Bolt on |
| End 2 Type | Con perno |
| Shaft Material | Aluminio |
| Shaft Material | Aluminum |
| Universal Joints Included | Oui |
| Universal Joints Included | Sí |
| Universal Joints Included | Yes |
| CV Joints Included | No |
| CV Joints Included | Non |
| Axle Nut Included | No |
| Axle Nut Included | Non |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Shaft Diameter | 4 |
| Slip Yoke | No |
| Slip Yoke | Non |
| Drive Shaft Length (In) | 78.625 in |
| Drive Shaft Wall Thickness (In) | 0.083 in |
| Drive Shaft Wall Thickness (In) | 0.083 in. |
| Espesor de la pared del eje motriz (in) | 0.083 in. |
| Longitud del eje motriz (in) | 78.625 in |
| Longitud total ajustable | No |
| Overall Length Adjustable | No |
| Overall Length Adjustable | Non |
| Package Contents | 1 driveshaft |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Body Type | Bed Length | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 6' 7" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2022 | GMC | Sierra 1500 | Crew Cab Pickup | 5' 9" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2021 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 6' 7" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2021 | GMC | Sierra 1500 | Crew Cab Pickup | 5' 9" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2020 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 6' 7" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2020 | GMC | Sierra 1500 | Crew Cab Pickup | 5' 9" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2019 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 6' 7" Foot Bed | 4WD | 5.3L | V8 | Rear | |
| 2019 | GMC | Sierra 1500 | Crew Cab Pickup | 5' 9" Foot Bed | 4WD | 5.3L | V8 | Rear |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.