Dorman 946-055 Drive Shaft - Rear

Reliable Drive Shaft for Chevrolet and GMC Trucks

The Dorman 946-055 drive shaft is engineered to provide dependable driveline performance for Chevrolet Silverado 1500, Silverado 1500 Classic, GMC Sierra 1500, and Sierra 1500 Classic models. Designed with durable steel construction and adjustable length, this rear driveshaft meets the demands of regular grade applications.

• Constructed from high-strength steel for durability
• Regular grade type suitable for standard driving conditions
• 2.75-inch shaft diameter for optimal torque handling
• Overall length adjustable up to 90.5 inches for precise fitment
• Wall thickness of 0.065 inches for structural integrity
• Greaseable design to maintain smooth operation and extend service life
• Includes one rear driveshaft compatible with specified models

Durable Steel Construction and Adjustable Length

This Dorman drive shaft (part number 946-055) features a robust steel shaft designed to withstand the stresses of daily driving and towing. The 2.75-inch diameter and 0.065-inch wall thickness provide a balance of strength and weight, ensuring reliable power transfer from the transmission to the rear axle. The overall length is adjustable up to 90.5 inches, allowing for precise installation and alignment in Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. Additionally, the greaseable design helps reduce wear on universal joints, promoting longer service intervals.

Compatible Vehicles and Applications

This rear driveshaft is compatible with the following vehicles:

• Chevrolet Silverado 1500 (including Classic models)
• GMC Sierra 1500 (including Classic models)

It is intended for use in driveline repairs or replacements where the original drive shaft requires servicing due to wear, damage, or failure.

Common Issues Addressed by This Drive Shaft

• Vibration or shuddering during acceleration or cruising
• Clunking noises from the driveline when shifting or starting
• Worn or damaged universal joints causing driveline play
• Leaks or grease loss from non-serviceable joints
• Incorrect drive shaft length causing misalignment or binding

Installation Notes and Tips

Ensure the vehicle is securely supported before removing the old driveshaft. Verify the adjustable length of the Dorman 946-055 drive shaft matches the original specification for your Chevrolet Silverado 1500 or GMC Sierra 1500. Grease the universal joints as part of routine maintenance to maintain smooth operation. Proper torque specifications should be followed when tightening fasteners to avoid driveline imbalance.

Quality Assurance and Warranty

Dorman manufactures this drive shaft to meet or exceed OEM standards for fit, form, and function. The steel construction and greaseable design contribute to long-term durability. Please refer to Dorman's official warranty policy for coverage details related to the 946-055 drive shaft.