Dorman 986-040 Drive Shaft - Rear

Dorman 986-040 Rear Driveshaft for F-150

Dorman 986-040 is a complete rear drive shaft assembly for select Ford F-150 applications. It is pre-balanced and built with new yokes, tubes, universal joints, and a slip yoke to simplify replacement on 2015-2016 Ford F-150 rear driveline setups with a 9.75 in. rear axle and 12-bolt differential cover.

Key Features

• Complete drive shaft assembly for rear installation
• Pre-balanced for direct replacement use
• Steel shaft construction with 3.5 in. diameter
• Flange-to-flange end configuration
• Overall length adjustable for application-specific fitment
• Includes universal joints; CV joints not included
• Slip yoke included
• Compressed length: 109.125 in.; drive shaft length: 111.125 in.
• Drive shaft wall thickness: 0.083 in.

Detailed Description

This Dorman drive shaft assembly is engineered as a replacement for the rear driveline on 2015-2016 Ford F-150 trucks. The assembly uses steel tubing and flange ends, and it arrives pre-balanced to reduce the need for additional setup before installation. With 100% new yokes, tubes, and universal joints, part number 986-040 provides a complete replacement solution for driveline service on the Ford F-150. This part cross-references Ford OE number FL3Z4R602ME 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 from age, wear, or impact
• Excessive driveline play related to a failing slip yoke
• Replacement needs after rear axle or differential service on a Ford F-150

Installation Notes and Tips

Fits 2015-2016 Ford F-150, rear, with 9.75 in. rear axle and 12-bolt differential cover. Verify flange style, compressed length, and overall driveline measurements before installation. Confirm the vehicle’s rear axle configuration and compare the original shaft dimensions to Dorman 986-040 to ensure proper alignment and fitment on the Ford F-150.

Quality Assurance

Dorman supplies this assembly as a ready-to-install replacement driveline component built from new shaft and joint components. The pre-balanced design supports consistent operation after installation, and the steel construction is intended for standard replacement service in the rear driveline.