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Dorman 986-666 Drive Shaft - Rear
Rear Drive Shaft for Mercedes-Benz 350SDL
This Dorman drive shaft assembly is built for rear application use on the 1990-1991 Mercedes-Benz 350SDL. Part number 986-666 is a complete replacement shaft that arrives pre-balanced and ready to install, with new yokes, tubes, universal joints, and CV joints included in the assembly design.
Key Features
- Direct replacement drive shaft assembly for rear fitment
- Pre-balanced for installation readiness
- 100% new yokes and tubes
- Universal joints included
- Steel shaft construction
- 77 in. drive shaft length with 2.5 in. shaft diameter
- 0.083 in. wall thickness
- Bolt-on end 1 and bolt-on end 2
- No slip yoke and no axle nut included
- Standard replacement grade
Detailed Description
Dorman 986-666 is a rear drive shaft assembly for the Mercedes-Benz 350SDL, covering 1990-1991 models. It is engineered as a complete replacement solution with new yokes, tubes, constant velocity joints, and universal joints, helping simplify driveline service on the Mercedes-Benz 350SDL rear driveline. The steel shaft measures 77 inches in compressed length and uses bolt-on ends for a straightforward replacement layout. This part cross-references Mercedes-Benz OE number 1264101716 for the same application.
What This Drive Shaft Helps Address
- Driveline vibration from a worn or out-of-balance shaft
- Clunking or driveline noise from worn joints
- Service issues caused by damaged yokes or tubes
- Rear driveline replacement needs on a Mercedes-Benz 350SDL
- Fitment-related downtime when the original shaft is no longer serviceable
Installation Notes and Tips
Verify rear-position fitment before installation on 1990-1991 Mercedes-Benz 350SDL applications. Confirm overall length, bolt-on end configuration, and shaft dimensions against the original driveline assembly before removal. Because this is a complete drive shaft assembly, inspect mating components and driveline mounting points for wear before final installation.
Quality Assurance
Dorman supplies this drive shaft as a standard replacement assembly built with new structural and joint components for service replacement use. Part number 986-666 is intended to restore proper driveline function on the specified Mercedes-Benz 350SDL rear application.
| Brand | Dorman |
| Part Number | 986-666 |
| Compressed Length | 77 |
| 10920 | No |
| 10920 | Non |
| End 1 Type | Bolt on |
| End 1 Type | Con perno |
| End 2 Type | Bolt on |
| End 2 Type | Con perno |
| Shaft Material | Acero |
| Shaft Material | Steel |
| 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 | 2.5 |
| Slip Yoke | No |
| Slip Yoke | Non |
| Drive Shaft Length (In) | 77 in |
| Drive Shaft Length (In) | 77 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) | 77 in. |
| Longitud total ajustable | No |
| Overall Length Adjustable | No |
| Overall Length Adjustable | Non |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Drive Type | Transmission | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Mercedes-Benz | 350SDL | RWD | Automatic | Rear | |
| 1990 | Mercedes-Benz | 350SDL | RWD | Automatic | 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.