Dorman 938-521 Drive Shaft - Front

Reliable Drive Shaft for Infiniti QX56

The Dorman 938-521 drive shaft is engineered to provide dependable driveline performance for your Infiniti QX56. Designed with precision and durability in mind, this steel drive shaft offers adjustable length to ensure a proper fit and smooth operation.

• Constructed from durable steel shaft material
• Regular grade type for standard driveline applications
• 2.5-inch shaft diameter for strength and stability
• 31.875-inch drive shaft length with adjustable overall length
• 0.083-inch wall thickness for balanced weight and durability
• Non-greaseable design for low maintenance
• Includes one complete drive shaft unit

Detailed Drive Shaft Specifications

This Dorman drive shaft (part number 938-521) is specifically designed for the Infiniti QX56, ensuring compatibility and reliable performance. The steel shaft material provides the necessary strength to handle torque and rotational forces, while the 2.5-inch diameter and 0.083-inch wall thickness balance durability with weight considerations. The adjustable overall length feature allows for precise installation, accommodating slight variations in vehicle setup or replacement needs. Although this drive shaft is not greaseable, its design minimizes maintenance requirements without compromising functionality.

Compatible Applications and Common Issues Addressed

This drive shaft is compatible with Infiniti QX56 models requiring a 31.875-inch length shaft. It is intended to replace worn or damaged drive shafts that may cause:

• Vibrations or shuddering during acceleration
• Unusual noises from the driveline area
• Difficulty in power transfer to the wheels
• Excessive wear on related driveline components
• Imbalanced or bent shaft affecting vehicle handling

Installation Notes and Tips

When installing the Dorman 938-521 drive shaft on your Infiniti QX56, ensure the adjustable length is set correctly to match the original shaft dimensions. Use proper torque specifications on all fasteners and inspect related components such as U-joints and center bearings for wear. Since this drive shaft is non-greaseable, verify that seals and joints are intact to prevent premature failure.

Quality Assurance and Warranty Information

Dorman manufactures this drive shaft to meet or exceed OEM standards for fit, form, and function. The 938-521 part number undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.