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DormanPart #: 999-888
Dorman 999-888 Frame Crossmember - Rear
⚙️ 47 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$340.98Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Avalanche 2500, Sierra 2500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 2500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Frame Crossmember options
Dorman 999-888 Frame Crossmember - Rear
| Brand | Dorman |
| Part Number | 999-888 |
| Material | Acero |
| Material | Steel |
| Length | 41.5 |
| Configuration | One piece |
| Configuration | Una pieza |
| Width | 19.5 |
| Mounting Hardware Included | Oui |
| Mounting Hardware Included | Sí |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Específico |
| Universal Or Specific Fit | Specific |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Material Thickness | 3 |
| Mounting Hole Quantity | 16 |
| Mounting Hole Diameter | 12 |
| Contenidos del paquete | Herrajes de montaje |
| Contenidos del paquete | Travesaño |
| Package Contents | Crossmember |
| Package Contents | Mounting hardware |
This part fits 47 vehicles. Search below:
| Year | Make | Model | Body Type | Bed Length | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2010 | Chevrolet | Silverado 3500 HD | Rear | Spare Tire Crossmember | ||
| 2010 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2010 | GMC | Sierra 3500 HD | Rear | Spare Tire Crossmember | ||
| 2009 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2009 | Chevrolet | Silverado 3500 HD | Rear | Spare Tire Crossmember | ||
| 2009 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2009 | GMC | Sierra 3500 HD | Rear | Spare Tire Crossmember | ||
| 2008 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2008 | Chevrolet | Silverado 3500 HD | Rear | Spare Tire Crossmember | ||
| 2008 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2008 | GMC | Sierra 3500 HD | Rear | Spare Tire Crossmember | ||
| 2007 | Chevrolet | Silverado 2500 HD Classic | Rear | Spare Tire Crossmember | ||
| 2007 | Chevrolet | Silverado 3500 Classic | Rear | Spare Tire Crossmember | ||
| 2007 | GMC | Sierra 2500 HD Classic | Rear | Spare Tire Crossmember | ||
| 2007 | GMC | Sierra 3500 Classic | Rear | Spare Tire Crossmember | ||
| 2006 | Chevrolet | Avalanche 2500 | Rear | Spare Tire Crossmember | ||
| 2006 | Chevrolet | Silverado 2500 | Rear | Spare Tire Crossmember | ||
| 2006 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2006 | Chevrolet | Silverado 3500 | Rear | Spare Tire Crossmember | ||
| 2006 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2006 | GMC | Sierra 3500 | Rear | Spare Tire Crossmember | ||
| 2005 | Chevrolet | Avalanche 2500 | Rear | Spare Tire Crossmember | ||
| 2005 | Chevrolet | Silverado 2500 | Rear | Spare Tire Crossmember | ||
| 2005 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2005 | Chevrolet | Silverado 3500 | Rear | Spare Tire Crossmember | ||
| 2005 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2005 | GMC | Sierra 3500 | Rear | Spare Tire Crossmember | ||
| 2004 | Chevrolet | Avalanche 2500 | Rear | Spare Tire Crossmember | ||
| 2004 | Chevrolet | Silverado 2500 | Rear | Spare Tire Crossmember | ||
| 2004 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2004 | GMC | Sierra 2500 | Rear | Spare Tire Crossmember | ||
| 2004 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2003 | Chevrolet | Avalanche 2500 | Rear | Spare Tire Crossmember | ||
| 2003 | Chevrolet | Silverado 2500 | Extended Cab Pickup | 6' 6" Foot Bed | Rear | Spare Tire Crossmember |
| 2003 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2003 | GMC | Sierra 2500 | Extended Cab Pickup | 6' 6" Foot Bed | Rear | Spare Tire Crossmember |
| 2003 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2002 | Chevrolet | Avalanche 2500 | Rear | Spare Tire Crossmember | ||
| 2002 | Chevrolet | Silverado 2500 | Extended Cab Pickup | 6' 6" Foot Bed | Rear | Spare Tire Crossmember |
| 2002 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2002 | GMC | Sierra 2500 | Extended Cab Pickup | 6' 6" Foot Bed | Rear | Spare Tire Crossmember |
| 2002 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember | ||
| 2001 | Chevrolet | Silverado 2500 | Extended Cab Pickup | 6' 6" Foot Bed | Rear | Spare Tire Crossmember |
| 2001 | Chevrolet | Silverado 2500 HD | Rear | Spare Tire Crossmember | ||
| 2001 | GMC | Sierra 2500 | Extended Cab Pickup | 6' 6" Foot Bed | Rear | Spare Tire Crossmember |
| 2001 | GMC | Sierra 2500 HD | Rear | Spare Tire Crossmember |
* 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:
124799771247997815200476152004771520048015200481152004921593267115932672159326731593267415932675159326761593267715932678159326791593268015932682159326831593268415932685159326861593969815939700159397382577956225779563
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.