Dorman 946-071 Drive Shaft - Rear

Durable Steel Drive Shaft for Chevrolet and GMC Trucks

The Dorman 946-071 drive shaft is engineered to provide reliable driveline performance for heavy-duty Chevrolet and GMC trucks. Designed with adjustable length and greaseable components, this steel drive shaft meets the demands of Sierra 2500 and Silverado 2500 HD models.

• Constructed from durable steel for strength and longevity
• Regular grade type ensuring consistent performance
• 3.5-inch shaft diameter for heavy-duty applications
• 105.25-inch overall drive shaft length with adjustable feature
• 0.083-inch wall thickness for optimal balance of weight and durability
• Greaseable design for easier maintenance and extended service life
• Includes one rear driveshaft compatible with specified models

Technical Details and Compatibility

The Dorman 946-071 drive shaft is specifically designed for use with Chevrolet Sierra 2500, Sierra 2500 HD, Sierra 2500 HD Classic, Silverado 2500, Silverado 2500 HD, and Silverado 2500 HD Classic trucks. Its steel construction and regular grade type provide the necessary strength for demanding driveline conditions. The 3.5-inch shaft diameter combined with a 0.083-inch wall thickness ensures durability without excessive weight. The overall length of 105.25 inches is adjustable, allowing for precise fitment and alignment during installation. Additionally, the greaseable feature supports routine maintenance, helping to prevent premature wear and extend the life of the drive shaft.

Common Applications and Problem Resolution

• Replacement for worn or damaged rear driveshafts on Chevrolet and GMC 2500 series trucks
• Addresses driveline vibrations caused by bent or imbalanced shafts
• Solves issues related to excessive play or looseness in the driveline
• Restores proper power transfer from transmission to rear axle
• Improves driveline reliability for trucks used in towing or heavy load conditions

Installation Notes and Tips

When installing the Dorman 946-071 drive shaft, ensure the adjustable length is set to match the vehicle’s specifications for proper alignment. Grease the fittings thoroughly to maintain smooth operation and reduce wear. It is recommended to inspect related driveline components such as U-joints and yokes during installation to ensure overall system integrity. Proper torque specifications should be followed to avoid driveline imbalance or damage.

Quality Assurance and Warranty

Dorman manufactures this drive shaft to meet OEM standards for fit, form, and function. The steel shaft and greaseable design contribute to a durable and serviceable component. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer for complete information.