Dorman 986-931 Drive Shaft - Rear

Dorman 986-931 Drive Shaft for SLK350

The Dorman 986-931 drive shaft assembly is a direct replacement for rear driveline service on select Mercedes-Benz SLK350 models. It arrives pre-balanced and assembled with new yokes, tubes, CV joints, and universal joints to simplify replacement work.

Key Features

• Fits 2005-2008 Mercedes-Benz SLK350, rear
• Complete drive shaft assembly for driveline replacement
• Pre-balanced for installation readiness
• 100% new yokes, tubes, constant velocity joints, and universal joints
• Steel shaft construction with 2.5 in. shaft diameter
• Pre-greased and phased, with bolt-on end connections
• Compressed length: 49 in.; drive shaft length: 50 in.
• Standard replacement grade for rear driveline service

Product Details

This Dorman drive shaft, part number 986-931, is built for rear applications on the 2005-2008 Mercedes-Benz SLK350. It uses a steel shaft with a 0.083 in. wall thickness, bolt-on ends, and no slip yoke, making it a straightforward OE-style replacement for driveline repair. The assembly is pre-greased and phased at 0 degrees to support proper driveline alignment during installation. This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

Common Problems This Part Can Address

• Driveline vibration from a worn or out-of-balance shaft
• Clunking or driveline noise from worn universal joints
• Binding or rough rotation caused by damaged shaft components
• Excess play from a fatigued rear drive shaft assembly
• Service issues on a Mercedes-Benz SLK350 rear drive shaft replacement

Installation Notes and Tips

Verify flange-to-flange length, compressed length, and rear fitment before installation. Inspect mating surfaces, fasteners, and surrounding driveline components for wear or damage, and confirm proper alignment after the shaft is installed. Because this assembly is pre-balanced, avoid altering the shaft or joints during setup.

Quality Assurance

Dorman supplies this drive shaft as a standard replacement assembly with new major wear components already installed. The design focuses on restoring driveline function with a ready-to-install configuration for the specified Mercedes-Benz SLK350 rear application.