Dorman 630-638 Drive Axle Shaft Assembly - Front Right Inner

Reliable Drive Axle Shaft Assembly for GM Trucks and SUVs

The Dorman 630-638 drive axle shaft assembly is engineered for select Cadillac, Chevrolet, and GMC models, including the Escalade, Sierra 1500, Silverado 1500, Tahoe, and Yukon series. Designed to meet OEM specifications, this axle shaft provides a direct replacement solution for vehicles requiring a 360 mm steel shaft without ABS tone ring or additional brake components.

• Compatible with Cadillac Escalade, Escalade ESV, Chevrolet Silverado 1500, Silverado 1500 LD, Sierra 1500, Sierra 1500 Limited, Tahoe, GMC Yukon, and Yukon XL
• 360 mm shaft length constructed from durable steel (acero)
• 28 inboard splines for secure fitment
• 30.5 mm shaft diameter designed for IFS differential case design
• Does not include ABS tone ring, wheel studs, brake hardware, or hub bearing

Durable Steel Construction and Precise Specifications

This Dorman drive axle shaft assembly (part number 630-638) features a robust steel (acero) shaft with a 360 mm length and 30.5 mm diameter, engineered to withstand the demands of heavy-duty use in full-size trucks and SUVs. The 28 inboard splines ensure a secure connection to the differential, while the absence of an outboard spline and ABS tone ring indicates compatibility with specific factory configurations. This axle shaft is designed for vehicles equipped with independent front suspension (IFS) differential cases, providing a reliable drivetrain component without additional brake or hub components.

Applications and Common Repair Solutions

• Replacement for worn or damaged axle shafts on Cadillac Escalade and Escalade ESV
• Restores drivetrain integrity on Chevrolet Silverado 1500 and Sierra 1500 models
• Addresses axle shaft failure or excessive wear in GMC Yukon and Yukon XL
• Suitable for vehicles lacking ABS tone ring or requiring a non-adjustable axle shaft
• Ideal for repairing axle shaft issues in Tahoe and Sierra 1500 Limited trucks

Installation Notes and Tips

Installation of the Dorman 630-638 drive axle shaft assembly requires proper alignment of the 28 inboard splines with the differential. Since this part does not include wheel studs, brake hardware, or seals, ensure existing components are inspected and replaced as necessary. Verify compatibility with your vehicle’s IFS differential design before installation. Professional installation is recommended to maintain drivetrain performance and safety.

Quality Assurance and Warranty Information

Dorman manufactures this axle shaft assembly to meet or exceed OEM standards for fit, form, and function. While this product does not include a rust-resistant coating, its steel construction provides durability under normal operating conditions. Please consult Dorman’s warranty policy for specific coverage details related to part number 630-638.