Dorman 986-945 Drive Shaft - Rear

Dorman 986-945 Drive Shaft for Ram 1500

Dorman 986-945 is a complete rear drive shaft assembly for select 2014-2018 Ram 1500 models with a 2-piece shaft assembly. It arrives pre-balanced and ready to install, with new yokes, tubes, constant velocity joints, and universal joints where applicable to the assembly design.

Key Features

• Complete drive shaft assembly for rear application
• Pre-balanced for installation readiness
• 100% new yokes, tubes, and universal joints
• Steel shaft construction with 3.5 in. shaft diameter
• Slip yoke end 1 and bolt-on end 2
• Pre-greased with grease fitting included
• Phased at 90 degrees
• Overall length adjustable; compressed length 86.5 in.
• Standard replacement grade

Detailed Description

This Dorman drive shaft assembly is built for rear driveline service on Ram 1500 trucks that use the 2-piece shaft configuration. Part number 986-945 is engineered as a direct replacement for the original assembly, helping restore driveline function with a pre-balanced steel shaft, slip yoke connection, and bolt-on rear end. It cross-references OE numbers 52123805AA and 52123805AB for the same application. For Ram 1500 owners searching for a rear drive shaft replacement, Dorman 986-945 provides a complete assembly solution with standard replacement construction and adjustable overall length.

What It Helps Fix

• Vibration from a worn or out-of-balance driveshaft
• Clunking or driveline noise from worn universal joints
• Loss of smooth power transfer through the rear driveline
• Fitment issues caused by damaged yokes or shaft tubing
• Service problems on Ram 1500 rear 2-piece shaft assemblies

Installation Notes and Tips

Fits 2014-2018 Ram 1500, rear, 2 Piece Shaft Assembly. Verify compressed length, flange-to-flange dimensions, and end types before installation to confirm the correct driveline configuration. The shaft is pre-greased and includes a grease fitting, and the phased design should be matched to the vehicle’s original driveline orientation during installation. Confirm the rear application and OE reference numbers 52123805AA or 52123805AB when ordering Dorman 986-945.

Quality Assurance

Dorman supplies this drive shaft as a standard replacement assembly built with new steel components and pre-balanced construction for service-ready installation. The design focuses on restoring original driveline geometry and function for select Ram 1500 rear applications.