Dorman 986-451 Drive Shaft - Rear

Dorman 986-451 Drive Shaft for Ram 3500

Replace a worn rear driveline assembly with the Dorman 986-451 drive shaft for 2013-2018 Ram 3500 Crew Chassis Cab applications. This complete assembly is pre-balanced and built for direct installation, with new yokes, tubes, universal joints, and a slip yoke already in place.

Key Features

• Complete drive shaft assembly for rear driveline service
• Pre-balanced for smoother operation after replacement
• Steel shaft construction with a 3.5 in diameter
• Flange-to-flange end configuration
• Greaseable design for serviceability
• Overall length adjustable for proper driveline setup
• Includes universal joints; CV joints are not included
• Compressed length: 90.625 in; drive shaft length: 92.125 in
• Drive shaft wall thickness: 0.095 in

Detailed Description

The Dorman 986-451 is a replacement drive shaft assembly engineered for rear use on Ram 3500 Crew Chassis Cab trucks from 2013 through 2018. It is built with 100% new yokes, tubes, and universal joints, and it arrives pre-balanced to reduce the need for additional driveline preparation. The steel shaft, flange ends, greaseable construction, and adjustable overall length support a straightforward replacement for the original rear drive shaft. This part cross-references 5146504AA for the same application.

What This Drive Shaft Helps Address

• Vibration from a worn or out-of-balance rear drive shaft
• Clunking or driveline noise from failed universal joints
• Driveline play caused by worn yokes or shaft components
• Service issues related to a damaged steel shaft tube
• Replacement needs on 2013-2018 Ram 3500 rear Crew Chassis Cab trucks

Installation Notes and Tips

Fits 2013-2018 Ram 3500, rear, Crew Chassis Cab. Verify flange-to-flange configuration, compressed length, and overall driveline measurements before installation. Confirm the rear application and inspect mating components for wear so the replacement shaft can be installed with the correct alignment and balance.

Quality Assurance

Dorman supplies this drive shaft as a complete replacement assembly with new structural and joint components, pre-balanced for installation. Part number 986-451 is built to replace the original rear driveline assembly on the listed Ram 3500 applications.