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Dorman 999-471 Frame Repair Kit - Rear Left
Frame Rail Repair for Chevrolet and GMC Trucks
Dorman 999-471 is a specific-fit frame rail repair kit for the rear left side of select Chevrolet and GMC trucks. It replaces only the damaged section with a heavy-gauge steel repair rail that is made to be welded into place after proper preparation.
For rusted, cracked, or perforated frame rail damage on a Chevrolet Silverado 1500 or GMC Sierra 1500, this OE FIX solution offers a more direct repair path than adapting salvaged frame components. Part number 999-471 is built for targeted frame repair where the original left rail has failed.
Key Features
- Heavy-gauge steel construction
- Black finish
- One-piece configuration
- Specific fit for select truck applications
- No drilling required
- Cutting required during repair preparation
- Bracket included: No
- Rivets included: No
- Screws included: No
Detailed Description
This Dorman frame repair kit is engineered for the rear left frame rail on 2007-2013 Chevrolet Cheyenne, 2007-2013 Chevrolet Silverado 1500, 2007-2013 GMC Sierra, and 2007-2013 GMC Sierra 1500 with center frame repair notes. The repair rail is designed to be welded into place after the damaged section is removed and the area is properly prepared. Part number 999-471 provides a focused repair option for restoring structural integrity without replacing the entire frame assembly.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Repair
- Rust damage in the left frame rail
- Cracks in the rear frame section
- Perforation from corrosion
- Damage that makes salvaged frame sections difficult to adapt
- Localized frame failure on Chevrolet Silverado 1500 and GMC Sierra 1500 trucks
Installation Notes and Tips
Installation requires cutting and welding. Proper preparation of the damaged frame area is necessary before the replacement rail is positioned and welded. Because this is a specific-fit repair kit, verify the vehicle application and rear left placement before beginning work. Professional frame repair equipment and welding skills are recommended for correct installation.
Quality Assurance
Dorman OE FIX parts are developed as direct repair solutions for common failure points, using steel construction and application-specific design for the listed Chevrolet and GMC trucks. Part number 999-471 is intended for repair work where a targeted frame rail replacement is preferred over broader frame replacement.
| Brand | Dorman |
|---|---|
| Part Number | 999-471 |
| Material | Acero |
| Material | Steel |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Configuration | One piece |
| Configuration | Una pieza |
| Drilling Required | No |
| Drilling Required | Non |
| Bracket Width | 3 |
| Universal Or Specific Fit | Específico |
| Universal Or Specific Fit | Specific |
| Material Thickness | 3 |
| Bracket Length | 50 |
| Cutting Required | Oui |
| Cutting Required | Sí |
| Cutting Required | Yes |
| Bracket Depth | 7.125 |
| Bracket Included | No |
| Bracket Included | Non |
| Contenidos del paquete | 1 kit de reparación de chasis |
| Package Contents | 1 frame repair kit |
| Remaches incluidos | No |
| Rivets Included | No |
| Rivets Included | Non |
| Screws Included | No |
| Screws Included | Non |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2013 | Chevrolet | Cheyenne | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2013 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2013 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2013 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2012 | Chevrolet | Cheyenne | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2012 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2012 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2012 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2011 | Chevrolet | Cheyenne | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2011 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2011 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2011 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2010 | Chevrolet | Cheyenne | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2010 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2010 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2010 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2009 | Chevrolet | Cheyenne | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2009 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2009 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2009 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2008 | Chevrolet | Cheyenne | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2008 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2008 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2008 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2007 | Chevrolet | Cheyenne | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2007 | Chevrolet | Silverado 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
| 2007 | GMC | Sierra | Crew Cab Pickup | Rear Left | Center Frame Repair |
| 2007 | GMC | Sierra 1500 | Extended Cab Pickup | Rear Left | Center Frame Repair |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.