Dorman 630-423 Drive Axle Shaft Assembly - Front Right Inner

OE-Style Front Right Inner Axle Shaft

This Dorman drive axle shaft assembly is a direct replacement for the original equipment on select GM full-size SUVs and trucks. Built for the front right inner position, Dorman 630-423 arrives ready for installation on the listed applications.

• Direct replacement axle shaft assembly for the front right inner position
• Fits select 2007-2012 Cadillac Escalade, Escalade ESV, and Escalade EXT applications
• Fits select 2007-2012 GMC Sierra 1500 and 2007-2011 GMC Yukon/Yukon XL 1500 applications
• Fits select 2007 Chevrolet Silverado 1500 and 2007 GMC Sierra 1500 models with RPO Code NP8 for 2-speed push button shift transfer case
• Carbon steel construction with 19.37 in. compressed length
• 28 inboard splines, 6x5.5 wheel bolt pattern, 14 mm x 1.5 wheel stud thread specification
• Inner axle shaft only; hub bearing, axle seal, brake hardware, dust shield, backing plate, studs, and ABS tone ring are not included

Detailed Product Overview

Dorman 630-423 is an inner axle shaft assembly for vehicles using an IFS differential case design. It is engineered as an OE replacement for the front right inner axle location and uses a carbon steel shaft with a 1.25 in. diameter and 19.37 in. length. This part cross-references GM applications such as 15801498 and GM8.25FAX-003 for the same application. For buyers searching for a front right inner axle shaft for 2007-2012 Cadillac Escalade or 2008-2012 GMC Sierra 1500, this part provides a direct-match service replacement.

Common Problems This Part Can Address

• Damaged front inner axle shaft from impact or driveline wear
• Noise or vibration caused by a worn axle shaft assembly
• Loss of driveline performance from spline or shaft damage
• Service replacement needs after axle-related teardown on the front right side
• Restoration of proper fitment on listed Cadillac, Chevrolet, and GMC applications

Installation Notes and Tips

Verify the vehicle’s transfer case configuration, axle position, and spline count before installation. This part is listed for the front right inner location and includes the inner axle shaft only, so inspect related seals, bearings, and brake components during service. Confirm wheel bolt pattern, shaft length, and application notes for 2007 Chevrolet Silverado 1500 and 2007 GMC Sierra 1500 models with RPO Code NP8, as well as 2008-2012 GMC Sierra 1500 models with a single-speed transfer case.

Quality Assurance

Dorman manufactures replacement driveline components to match original equipment fit and function on the listed vehicles. Part number 630-423 is built as a direct replacement axle shaft assembly for confirmed applications.