Dorman 946-002 Drive Shaft - Rear

Overview of Dorman 946-002 Drive Shaft for Chevrolet and GMC Vans

The Dorman 946-002 drive shaft is engineered for reliable driveline performance in Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models. Constructed from aluminum, this rear drive shaft offers a balance of strength and weight savings for regular grade applications.

• Aluminum shaft material for durability and reduced weight
• Regular grade type suitable for standard driving conditions
• 4-inch shaft diameter for consistent torque transfer
• 76.25-inch fixed overall length designed for specific rear driveline fitment
• 0.083-inch wall thickness ensuring structural integrity
• Non-greaseable design for maintenance-free operation
• Includes one rear driveshaft per package

Detailed Product Description

This Dorman drive shaft, part number 946-002, is specifically designed for the rear driveline of Chevrolet Express 2500 and 3500, as well as GMC Savana 2500 and 3500 vans. The aluminum shaft material provides a lightweight yet durable solution that helps reduce rotational mass, contributing to smoother driveline operation. With a 4-inch diameter and 0.083-inch wall thickness, the shaft maintains the necessary strength to handle regular driving loads without compromising performance. The fixed length of 76.25 inches ensures a precise fit without the need for length adjustments. This drive shaft is not greaseable, which simplifies maintenance requirements.

Common Applications and Problem Resolution

• Replacement for worn or damaged rear drive shafts on Chevrolet Express and GMC Savana vans
• Eliminates vibrations caused by bent or imbalanced shafts
• Restores proper driveline alignment and torque transfer
• Addresses noise issues related to shaft wear or failure
• Prevents driveline failure due to corrosion or fatigue

Installation Notes and Tips

Installation of the Dorman 946-002 drive shaft should be performed by a qualified technician familiar with Chevrolet Express and GMC Savana driveline systems. Ensure the vehicle is securely lifted and supported before removal of the old shaft. Verify the shaft length and diameter match the original equipment specifications. Since this drive shaft is non-greaseable and non-adjustable in length, no additional lubrication or length modification is required during installation. Proper torque specifications should be followed when securing the shaft to prevent driveline issues.

Quality Assurance and Warranty

Dorman manufactures this drive shaft to meet or exceed OEM standards for fit, form, and function. The use of aluminum shaft material and precise manufacturing processes ensures consistent performance and durability. While specific warranty details are not provided here, Dorman typically offers limited warranties on their driveline components to cover defects in materials and workmanship.