Dorman 946-920 Drive Shaft - Rear

Durable Steel Drive Shaft for Chevrolet and GMC Trucks

The Dorman 946-920 drive shaft is engineered to provide reliable driveline performance for heavy-duty Chevrolet and GMC trucks. Designed specifically for the Sierra 2500 HD, Sierra 2500 HD Classic, Silverado 2500 HD, and Silverado 2500 HD Classic models, this drive shaft offers a precise fit and dependable operation.

• Constructed from durable steel for strength and longevity
• 69.25 inches overall length with adjustable length capability
• 3.5-inch shaft diameter with 0.083-inch wall thickness for balanced rigidity
• Includes slip yoke for smooth driveline connection
• Regular grade type suitable for standard heavy-duty applications
• Does not include CV joints or axle nut
• Package contains one drive shaft

Technical Details and Construction

The Dorman 946-920 drive shaft is made from high-quality steel, ensuring the structural integrity required for heavy-duty use in Chevrolet and GMC 2500 HD trucks. Its 3.5-inch diameter and 0.083-inch wall thickness provide a balance of strength and flexibility to handle torque and rotational forces effectively. The slip yoke design allows for smooth engagement with the transmission or transfer case, while the adjustable overall length of 69.25 inches accommodates precise fitment during installation. This drive shaft does not include CV joints or axle nuts, so those components must be sourced separately if needed.

Compatible Vehicles and Applications

This drive shaft is compatible with the following models:

• Chevrolet Sierra 2500 HD and Sierra 2500 HD Classic
• GMC Sierra 2500 HD and Sierra 2500 HD Classic
• Chevrolet Silverado 2500 HD and Silverado 2500 HD Classic
• GMC Silverado 2500 HD and Silverado 2500 HD Classic

It is designed for use in driveline and axle systems where a reliable steel drive shaft is required to transfer power from the transmission to the rear differential.

Common Issues Addressed by This Drive Shaft

• Vibration or noise caused by worn or damaged drive shafts
• Excessive play or looseness in the driveline assembly
• Failure of original drive shaft due to fatigue or corrosion
• Incompatibility or improper length of replacement drive shafts
• Slip yoke wear affecting driveline engagement

Installation Notes and Tips

When installing the Dorman 946-920 drive shaft, verify the overall length and adjust as necessary to ensure proper fitment. Inspect the slip yoke and related components for wear before assembly. Since CV joints and axle nuts are not included, ensure these parts are compatible and properly installed. Proper torque specifications should be followed to maintain driveline integrity and prevent premature wear.

Quality Assurance and Warranty

Dorman manufactures this drive shaft to meet or exceed OEM standards for durability and performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. This drive shaft is designed to provide consistent service life when installed and maintained according to manufacturer guidelines.