Dorman 600-127 Transfer Case Housing - Front

Transfer Case Housing for GM 4x4 Applications

Dorman 600-127 is a direct replacement transfer case housing for select GM trucks with an electric shift 2-speed transfer case. It restores the fit and function of a cracked or leaking original housing and uses aluminum alloy construction with new seals for a tighter installation.

Compatible with 2001-2007 Chevrolet Silverado and GMC Sierra 2500 HD/3500 front transfer case applications, this housing is built for service replacement where the original case half has failed. Part number 600-127 is also cross-referenced to 12384976 for the same application.

Key Features

• Aluminum alloy transfer case housing with silver finish
• Direct replacement for damaged or leaking original equipment housing
• Includes new seals for leak-resistant installation
• 17 mounting holes for OE-style fitment
• Length: 19 inches
• Fits front-position electric shift 2-speed transfer case housing applications

Detailed Description

This Dorman transfer case housing is engineered for GM 4x4 trucks that need a replacement for a cracked, warped, or leaking housing section. The aluminum alloy construction provides the structural support needed for transfer case operation, while the included seals help maintain fluid containment after installation. Part number 600-127 is a practical service solution for Silverado and Sierra models that use the front transfer case housing configuration.

Use this housing on 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2001-2006 GMC Sierra 2500 HD, 2001-2006 GMC Sierra 3500, and 2006 Chevrolet Silverado 2500 front applications, plus 2007 Chevrolet Silverado 2500 HD Classic, 2007 Chevrolet Silverado 3500 Classic, 2007 GMC Sierra 2500 HD Classic, and 2007 GMC Sierra 3500 Classic front applications.

What It Helps Fix

• Fluid leaks from a cracked transfer case housing
• Housing damage from impact, corrosion, or wear
• Loss of proper sealing at the transfer case case half
• Fitment issues caused by a distorted original housing
• Service failures on electric shift 2-speed transfer case assemblies

Installation Notes

Verify transfer case configuration, mounting hole count, and front-position application before installation. Clean all mating surfaces thoroughly and inspect related seals and components for wear before reassembly. Confirm the vehicle is one of the listed Silverado or Sierra applications for Dorman 600-127 before ordering.

Quality Assurance

Dorman manufactures this housing as a replacement part that matches the fit and function of the original equipment component. The aluminum alloy construction and included seals support a proper service repair on the specified GM truck applications.