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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.
| Brand | Dorman |
|---|---|
| Part Number | 630-639 |
| Gasket Or Seal Included | No |
| Gasket Or Seal Included | Non |
| Inside Diameter | 42 mm |
| Inside Diameter | 42mm |
| Installation Hardware Included | No |
| Installation Hardware Included | Non |
| Length | 330 mm |
| Material | Aluminio |
| Material | Aluminum |
| Mounting Hole Diameter | 11 mm |
| Mounting Hole Diameter | 11mm |
| Mounting Hole Quantity | 5 |
| Package Contents | Axle shaft housing |
| Universal Or Specific Fit | Ajuste específico |
| Universal Or Specific Fit | Specific fit |
This part fits 51 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Silverado 1500 Classic | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2007 | GMC | Sierra 1500 Classic | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | Chevrolet | Avalanche 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | Chevrolet | Silverado 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | Chevrolet | Suburban 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | Chevrolet | Tahoe | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | GMC | Sierra 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | GMC | Yukon | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2006 | GMC | Yukon XL 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | Chevrolet | Avalanche 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | Chevrolet | Silverado 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | Chevrolet | Suburban 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | Chevrolet | Tahoe | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | GMC | Sierra 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | GMC | Yukon | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2005 | GMC | Yukon XL 1500 | 4WD | Front | w/RPO Code NP8 (2 Speed, Push Button Shift, Transfer Case) | |
| 2004 | Chevrolet | Avalanche 1500 | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2004 | Chevrolet | Silverado 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2004 | Chevrolet | Suburban 1500 | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2004 | Chevrolet | Tahoe | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2004 | GMC | Sierra 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2004 | GMC | Yukon | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2004 | GMC | Yukon XL 1500 | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2003 | Chevrolet | Avalanche 1500 | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2003 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) |
| 2003 | Chevrolet | Suburban 1500 | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2003 | Chevrolet | Tahoe | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2003 | GMC | Sierra 1500 | Standard Cab Pickup | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) |
| 2003 | GMC | Yukon | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2003 | GMC | Yukon XL 1500 | 4WD | Front | wo/RPO Code NR4 (2 Speed, All Wheel Drive Transfer Case) | |
| 2002 | Chevrolet | Avalanche 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2002 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) |
| 2002 | Chevrolet | Suburban 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2002 | Chevrolet | Tahoe | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2002 | GMC | Sierra 1500 | Standard Cab Pickup | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) |
| 2002 | GMC | Yukon | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2002 | GMC | Yukon XL 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2001 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) |
| 2001 | Chevrolet | Suburban 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2001 | Chevrolet | Tahoe | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2001 | GMC | Sierra 1500 | Standard Cab Pickup | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) |
| 2001 | GMC | Yukon | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2001 | GMC | Yukon XL 1500 | 4WD | Front | wo/RPO Code Y91 (Luxury Edition Package) | |
| 2000 | Chevrolet | Silverado 1500 | 4WD | Front | ||
| 2000 | Chevrolet | Suburban 1500 | 4WD | Front | ||
| 2000 | Chevrolet | Tahoe | 4WD | Front | ||
| 2000 | GMC | Sierra 1500 | 4WD | Front | ||
| 2000 | GMC | Yukon | 4WD | Front | ||
| 2000 | GMC | Yukon XL 1500 | 4WD | Front | ||
| 1999 | Chevrolet | Silverado 1500 | 4WD | Front | ||
| 1999 | GMC | Sierra 1500 | 4WD | Front |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.