Dorman 946-091 Drive Shaft - Rear

Durable Steel Drive Shaft for Chevrolet and GMC Trucks

The Dorman 946-091 drive shaft is engineered to provide reliable driveline performance for heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Sierra 3500 and Silverado 3500 series, this steel drive shaft ensures consistent power transfer and durability under demanding conditions.

• Constructed from high-quality steel for strength and longevity
• Regular grade type suitable for standard heavy-duty applications
• 3.5-inch shaft diameter for optimal torque handling
• 63.35 inches overall length tailored for rear driveshaft replacement
• Wall thickness of 0.083 inches for balanced durability and weight
• Non-greaseable design requiring minimal maintenance
• Includes one rear driveshaft compatible with specified models

Technical Details and Specifications

The Dorman 946-091 drive shaft features a solid steel construction with a 3.5-inch diameter shaft, providing the necessary rigidity and strength for heavy-duty truck applications. Its 63.35-inch length is designed to match the rear driveshaft requirements of Chevrolet Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD models. The 0.083-inch wall thickness balances durability with weight considerations, ensuring efficient power transfer without unnecessary mass. This drive shaft is a regular grade type and does not include grease fittings, which simplifies maintenance routines.

Compatible Vehicles and Applications

• Chevrolet Sierra 3500 (including Classic and HD variants)
• Chevrolet Silverado 3500 (including Classic and HD variants)
• GMC Sierra 3500 (including Classic and HD variants)
• GMC Silverado 3500 (including Classic and HD variants)

Common Issues Addressed by This Drive Shaft

• Vibration or shuddering during acceleration or cruising
• Clunking noises from the driveline under load
• Worn or damaged drive shaft components causing driveline imbalance
• Failure of original drive shaft due to wear or corrosion
• Replacement for non-adjustable rear driveshaft applications

Installation Notes and Tips

This drive shaft is designed as a direct replacement for the rear driveshaft on compatible Chevrolet and GMC 3500 series trucks. It is not greaseable and does not feature an adjustable overall length, so ensure proper fitment before installation. Professional installation is recommended to verify correct alignment and secure fastening to prevent driveline issues.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 946-091 drive shaft undergoes rigorous quality control to ensure durability and performance. Warranty coverage details should be confirmed with the supplier or manufacturer.