Dorman 938-521 Drive Shaft - Front

Front Drive Shaft for Infiniti QX56

Dorman 938-521 is a front drive shaft for 2004-2010 INFINITI QX56 applications. It addresses the service challenges created by permanently staked universal joints by using a serviceable OE FIX design for easier maintenance.

Key Features

• Fits 2004-2010 INFINITI QX56, front
• OE FIX front drive shaft design for serviceable U-joints
• Steel shaft construction for driveline strength
• Overall length adjustable for proper driveline setup
• 2.5 in shaft diameter with 31.875 in drive shaft length
• 0.083 in wall thickness
• Non-greaseable design

Detailed Description

This Dorman 938-521 front drive shaft is built for the 2004-2010 INFINITI QX56 and is engineered around serviceability. The original equipment design on these vehicles uses permanently staked universal joints, which can make driveline service more difficult. This replacement uses a serviceable U-joint arrangement to simplify future maintenance while matching the front driveline application.

Constructed from steel, this drive shaft measures 31.875 inches in length, with a 2.5-inch shaft diameter and 0.083-inch wall thickness. The overall length is adjustable to help achieve the correct driveline fit during installation. Dorman 938-521 is a direct-fit front drive shaft solution for INFINITI QX56 owners looking for a replacement that supports easier U-joint service.

This part cross-references Monroe Shocks & Struts (e.g., 372007S12A) for the same application.

Common Issues This Part Can Help Address

• Worn or damaged front drive shaft assembly
• Service difficulty caused by staked universal joints
• Driveline vibration related to shaft wear or fitment issues
• Noise from a failing front driveshaft assembly
• Need for a serviceable replacement on 2004-2010 INFINITI QX56 front driveline applications

Installation Notes and Tips

Verify front driveline fitment by year and vehicle configuration before installation. Confirm shaft length and overall adjustment range against the original part, and inspect related driveline components for wear before completing the repair. Proper alignment and torque procedures are important for smooth operation after replacement.

Quality Assurance

Dorman OE FIX parts are developed to address common original-equipment service limitations with practical replacement designs. Part number 938-521 is built as a steel front drive shaft for the specified INFINITI QX56 applications and follows the OE-style fitment requirements for this driveline position.