Dorman 946-003 Drive Shaft - Rear

Reliable Aluminum Drive Shaft for Chevrolet and GMC Trucks

The Dorman 946-003 drive shaft is engineered to provide dependable driveline performance for Chevrolet Silverado 1500, Silverado 1500 Classic, GMC Sierra 1500, and Sierra 1500 Classic models. Constructed from durable aluminum, this rear drive shaft offers a precise fit and consistent operation for your vehicle's driveline system.

• Constructed from lightweight, corrosion-resistant aluminum shaft material
• Regular grade type designed for standard driveline applications
• 4-inch shaft diameter for optimal strength and balance
• Overall length of 75.75 inches to match factory specifications
• Wall thickness of 0.125 inches for durability and rigidity
• Non-greaseable design for maintenance-free operation
• Includes one rear driveshaft compatible with specified models

Detailed Drive Shaft Description

The Dorman 946-003 drive shaft is manufactured with an aluminum shaft material that reduces weight while maintaining structural integrity. Its 4-inch diameter and 0.125-inch wall thickness provide a balance of strength and flexibility necessary for smooth power transfer. This drive shaft is designed as a regular grade type, suitable for standard driving conditions without the need for additional reinforcement or customization. With a fixed overall length of 75.75 inches, it matches the original equipment specifications for the rear driveshaft on Chevrolet Silverado 1500 and GMC Sierra 1500 trucks, including Classic models.

Compatible Vehicles and Applications

• Chevrolet Silverado 1500 (including Classic models)
• GMC Sierra 1500 (including Classic models)
• Rear driveshaft replacement for driveline repairs or upgrades
• Addressing vibration or driveline noise issues
• Restoring driveline integrity after damage or wear

Installation Notes and Tips

This drive shaft is designed for direct replacement and does not feature grease fittings or adjustable length. Ensure proper alignment and torque specifications during installation to maintain driveline balance and prevent premature wear. It is recommended to inspect related components such as universal joints and yokes during replacement to ensure overall driveline health.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 946-003 drive shaft undergoes rigorous quality control to ensure durability and performance. Warranty coverage details can be obtained from the product documentation or manufacturer resources.