
Dorman 630-639 Drive Axle Shaft Housing - Front
Drive Axle Shaft Housing for Front Applications
Dorman 630-639 is a specific-fit drive axle shaft housing for front driveline applications on select Chevrolet and GMC trucks and SUVs. It is built to match the original housing dimensions and help retain drive axle components and differential lubricant after the factory housing is missing or damaged.
Key Features
- Specific-fit replacement for select front axle applications
- Aluminum construction for a direct replacement profile
- Inside diameter: 42 mm
- Length: 330 mm
- Mounting hole diameter: 11 mm
- Mounting hole quantity: 5
- Package contents: axle shaft housing
- Cross-reference: 12479320
Detailed Description
This Dorman drive axle shaft housing, part number 630-639, is engineered to match the original housing on specified vehicles and restore the enclosure around the drive axle and differential lubricant. It is a front-position, specific-fit component for applications including Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon models listed in the fitment data. The aluminum housing is sized with a 42 mm inside diameter, 330 mm length, and 11 mm mounting holes to support OE-style replacement on the correct application.
Fits 2007 Chevrolet Silverado 1500 Classic, front, w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case). Fits 2005-2006 Chevrolet Silverado 1500, front, w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case). Fits 1999-2000 GMC Sierra 1500, front.
What It Helps Fix
- Cracked or missing front axle shaft housing
- Loss of differential lubricant from a damaged housing
- Improper axle support caused by housing wear or breakage
- Fitment issues after replacing a damaged OE housing
- Front driveline service on select Chevrolet Silverado 1500 and GMC Sierra 1500 applications
Installation Notes and Tips
Verify the vehicle’s year, make, model, front position, and RPO code before ordering. This part is a specific-fit replacement and does not include gasket or seal components. Installation hardware is not included. Confirm the 42 mm inside diameter, 330 mm length, and 11 mm mounting hole dimensions match the original housing before installation.
Quality Assurance
Dorman designs replacement housings to match the fit of the original part on the listed vehicles. Part number 630-639 is built as a direct replacement for the specified front axle applications and cross-references 12479320 for the same application.
Dorman 630-639 Drive Axle Shaft Housing - Front
Drive Axle Shaft Housing for Front Applications
Dorman 630-639 is a specific-fit drive axle shaft housing for front driveline applications on select Chevrolet and GMC trucks and SUVs. It is built to match the original housing dimensions and help retain drive axle components and differential lubricant after the factory housing is missing or damaged.
Key Features
- Specific-fit replacement for select front axle applications
- Aluminum construction for a direct replacement profile
- Inside diameter: 42 mm
- Length: 330 mm
- Mounting hole diameter: 11 mm
- Mounting hole quantity: 5
- Package contents: axle shaft housing
- Cross-reference: 12479320
Detailed Description
This Dorman drive axle shaft housing, part number 630-639, is engineered to match the original housing on specified vehicles and restore the enclosure around the drive axle and differential lubricant. It is a front-position, specific-fit component for applications including Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon models listed in the fitment data. The aluminum housing is sized with a 42 mm inside diameter, 330 mm length, and 11 mm mounting holes to support OE-style replacement on the correct application.
Fits 2007 Chevrolet Silverado 1500 Classic, front, w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case). Fits 2005-2006 Chevrolet Silverado 1500, front, w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case). Fits 1999-2000 GMC Sierra 1500, front.
What It Helps Fix
- Cracked or missing front axle shaft housing
- Loss of differential lubricant from a damaged housing
- Improper axle support caused by housing wear or breakage
- Fitment issues after replacing a damaged OE housing
- Front driveline service on select Chevrolet Silverado 1500 and GMC Sierra 1500 applications
Installation Notes and Tips
Verify the vehicle’s year, make, model, front position, and RPO code before ordering. This part is a specific-fit replacement and does not include gasket or seal components. Installation hardware is not included. Confirm the 42 mm inside diameter, 330 mm length, and 11 mm mounting hole dimensions match the original housing before installation.
Quality Assurance
Dorman designs replacement housings to match the fit of the original part on the listed vehicles. Part number 630-639 is built as a direct replacement for the specified front axle applications and cross-references 12479320 for the same application.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Drive Axle Shaft Housing for Front Applications
Dorman 630-639 is a specific-fit drive axle shaft housing for front driveline applications on select Chevrolet and GMC trucks and SUVs. It is built to match the original housing dimensions and help retain drive axle components and differential lubricant after the factory housing is missing or damaged.
Key Features
- Specific-fit replacement for select front axle applications
- Aluminum construction for a direct replacement profile
- Inside diameter: 42 mm
- Length: 330 mm
- Mounting hole diameter: 11 mm
- Mounting hole quantity: 5
- Package contents: axle shaft housing
- Cross-reference: 12479320
Detailed Description
This Dorman drive axle shaft housing, part number 630-639, is engineered to match the original housing on specified vehicles and restore the enclosure around the drive axle and differential lubricant. It is a front-position, specific-fit component for applications including Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon models listed in the fitment data. The aluminum housing is sized with a 42 mm inside diameter, 330 mm length, and 11 mm mounting holes to support OE-style replacement on the correct application.
Fits 2007 Chevrolet Silverado 1500 Classic, front, w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case). Fits 2005-2006 Chevrolet Silverado 1500, front, w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case). Fits 1999-2000 GMC Sierra 1500, front.
What It Helps Fix
- Cracked or missing front axle shaft housing
- Loss of differential lubricant from a damaged housing
- Improper axle support caused by housing wear or breakage
- Fitment issues after replacing a damaged OE housing
- Front driveline service on select Chevrolet Silverado 1500 and GMC Sierra 1500 applications
Installation Notes and Tips
Verify the vehicle’s year, make, model, front position, and RPO code before ordering. This part is a specific-fit replacement and does not include gasket or seal components. Installation hardware is not included. Confirm the 42 mm inside diameter, 330 mm length, and 11 mm mounting hole dimensions match the original housing before installation.
Quality Assurance
Dorman designs replacement housings to match the fit of the original part on the listed vehicles. Part number 630-639 is built as a direct replacement for the specified front axle applications and cross-references 12479320 for the same application.












