Dorman 986-437 Drive Shaft - Rear

Rear Drive Shaft for Cadillac STS

This Dorman drive shaft assembly is a direct replacement for select rear-drive Cadillac STS applications. Part number 986-437 arrives pre-balanced and assembled with new yokes, tubes, CV joints, and universal joints where applicable to the design, helping simplify drivetrain service on the Cadillac STS.

Key Features

• Complete drive shaft assembly for rear applications
• Pre-balanced for installation readiness
• Steel shaft construction with a 2.5 in diameter
• Compressed length: 57.125 in
• CV joint on end 1 and triprong connection on end 2
• Drive shaft wall thickness: 0.083 in
• Non-adjustable overall length
• Slip yoke not included

Detailed Description

Dorman 986-437 is built as a complete replacement driveshaft for the rear of select Cadillac STS models. It uses a steel shaft with a 57.125 in compressed length and a 0.083 in wall thickness, and it includes CV joints for the specified end configuration. This assembly is intended for 2006-2011 Cadillac STS, rear, and also 2005 Cadillac STS, rear, from VIN 50206731. This part cross-references OE number 15235576 for the same application.

What It Helps Fix

• Vibration from a worn or out-of-balance driveshaft
• Clunking or driveline noise from worn joints
• Driveline play caused by damaged shaft components
• Service delays when rebuilding individual shaft parts is not practical
• Rear driveline replacement needs on Cadillac STS models

Installation Notes and Tips

Verify rear fitment by model year and VIN before ordering, especially for the 2005 Cadillac STS application with VIN 50206731. Confirm end connections, compressed length, and shaft dimensions against the original part before installation. Inspect related driveline components and mounting points for wear before installing the new assembly.

Quality Assurance

Dorman supplies this driveshaft as a complete replacement assembly with new yokes, tubes, and joint components for the specified design. Part number 986-437 is engineered for direct replacement use on select Cadillac STS rear driveline applications.