Dorman 986-077 Drive Shaft - Rear

Dorman 986-077 Drive Shaft for Cadillac ATS

Dorman 986-077 is a complete rear drive shaft assembly for select Cadillac ATS models. It arrives pre-balanced and ready to install, with new yokes, steel tubing, a slip yoke, and greaseable universal joints for a direct driveline service replacement.

Key Features

• Complete drive shaft assembly for rear driveline service
• Pre-balanced for smoother installation and operation
• 100% new yokes, tubes, and universal joints
• Steel shaft construction with 2.5 in. diameter and 0.083 in. wall thickness
• Slip yoke included
• Greaseable drive shaft design
• Adjustable overall length for application-specific fitment
• Triprong end 1 and triprong end 2 configuration

Detailed Description

This Dorman drive shaft assembly is built for rear applications on the Cadillac ATS and is engineered as a complete replacement for worn or damaged driveline components. Part number 986-077 uses steel construction, a 53.25 in. drive shaft length, and a 51.75 in. compressed length to support proper driveline geometry. It is supplied with universal joints included, while CV joints are not included, matching the listed design for this application. For buyers searching for a rear drive shaft for 2013-2019 Cadillac ATS, Dorman 986-077 provides a direct replacement option with the key components already assembled.

This part cross-references GM OE 20762355 for the same application.

What It Helps Fix

• Vibration from a worn or out-of-balance driveshaft
• Clunking or driveline noise from worn universal joints
• Excess play caused by damaged yokes or shaft wear
• Driveline service needs after shaft damage or corrosion
• Rear driveline issues on Cadillac ATS models with the listed fitment

Installation Notes and Tips

Verify rear fitment before installation: Fits 2016-2019 Cadillac ATS, rear, ID AA2K. Fits 2013-2015 Cadillac ATS, rear. Confirm the triprong end configuration, compressed length, and overall length adjustability against the original shaft before removal. Inspect related driveline components, mounting points, and seals during replacement to help ensure proper alignment and operation.

Quality Assurance

Dorman builds this assembly as a complete replacement with new yokes, tubes, and universal joints, and it is pre-balanced for installation readiness. The design follows the listed OE-style application for the Cadillac ATS rear driveline.