Dorman 946-085 Drive Shaft - Rear

Reliable Drive Shaft for Chevrolet and GMC Trucks

The Dorman 946-085 drive shaft is engineered to provide dependable driveline performance for heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Sierra 2500 HD and Silverado 3500 Classic, this steel drive shaft offers durability and adjustability to meet demanding driving conditions.

• Constructed from durable steel for strength and longevity
• Regular grade type ensuring consistent performance
• 3.5-inch shaft diameter for optimal torque handling
• 94-inch drive shaft length with 0.083-inch wall thickness
• Greaseable design for easier maintenance and extended service life
• Overall length adjustable to fit precise vehicle specifications
• Includes one rear driveshaft suitable for specified models

Durable Steel Construction and Adjustable Length

This Dorman drive shaft (part number 946-085) is built from steel, providing the necessary strength to handle the torque and load requirements of heavy-duty trucks such as the Chevrolet Silverado 2500 HD and GMC Sierra 3500 Classic. The 3.5-inch diameter shaft combined with a 0.083-inch wall thickness ensures a balance between rigidity and weight. Its greaseable feature allows for routine lubrication, reducing wear and extending the component's lifespan. Additionally, the overall length is adjustable, allowing for precise fitment and alignment in the driveline system.

Compatible Vehicles and Applications

This rear driveshaft is compatible with a range of Chevrolet and GMC heavy-duty trucks, including:

• Chevrolet Sierra 2500 HD and Sierra 2500 HD Classic
• Chevrolet Sierra 3500 and Sierra 3500 Classic
• Chevrolet Silverado 2500 HD and Silverado 2500 HD Classic
• Chevrolet Silverado 3500 and Silverado 3500 Classic

Common Issues Addressed by This Drive Shaft

• Vibration or shuddering during acceleration or cruising
• Excessive driveline noise indicating worn components
• Drive shaft imbalance or misalignment problems
• Grease fitting wear or lack of lubrication points
• Incorrect drive shaft length causing driveline stress

Installation Notes and Tips

When installing the Dorman 946-085 drive shaft, ensure the vehicle is securely lifted and supported. Verify the drive shaft length and adjust as necessary to match the original equipment specifications. Properly grease all fittings to maintain lubrication and prevent premature wear. Check for any signs of damage or wear on related driveline components during installation.

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 its durability and service life. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.