Dorman 966-522 Drive Shaft - Rear

OE FIX Drive Shaft Serviceability

This Dorman drive shaft is built for a specific rear application on the Ford F-350 Super Duty and addresses a common service issue found in the original design. It replaces permanently staked universal joints with serviceable joints for easier maintenance and repair.

Key Features

• OE FIX design for improved serviceability
• Steel shaft construction with standard replacement grade
• Pre-greased with a grease fitting included
• Bolt-on end connections for straightforward installation
• Slip yoke design with adjustable overall length

Detailed Description

Part number 966-522 is a rear drive shaft for 1999-2001 Ford F-350 Super Duty models with dual rear wheels. It uses a steel shaft with a 3.5-inch diameter, 0.083-inch wall thickness, and a compressed length of 94.75 inches. The design includes serviceable universal joints, no CV joints, and a slip yoke with up to 1 inch of slip. This makes 966-522 a practical replacement when the original shaft’s staked joints are difficult to service. This part cross-references Ford OE numbers F81Z4R602HU and F81Z4R602HUE for the same application.

What It Is Used For

• Replacing a worn or damaged rear drive shaft
• Restoring driveline function after universal joint wear
• Addressing service issues caused by non-serviceable factory joints
• Correcting vibration or driveline noise related to shaft wear

Installation Notes and Tips

Fits 1999-2001 Ford F-350 Super Duty, rear, with dual rear wheels (DRW). Verify shaft length, flange fitment, and driveline configuration before installation. The bolt-on ends and adjustable length help simplify replacement, but proper measurement and alignment are important for correct driveline operation.

Quality Assurance

Dorman OE FIX parts are engineered to improve service access over the original design while maintaining standard replacement fit and function. Part number 966-522 is built as a direct replacement for the listed application.