 
			| 2005 GMC Sierra 2500HD Specifications | |
|---|---|
| 2005 GMC Sierra 2500HD Sub Models | |
| Crew Cab 4x4 | 2.5% | 
| Extended Cab | 0.8% | 
| Extended Cab 4x4 | 5.1% | 
| Extended Cab Animal Control | 0.8% | 
| Regular Cab 4x4 | 0.8% | 
| Regular Cab Utility Truck | 0.8% | 
| SLE Crew Cab | 1.7% | 
| SLE Crew Cab 4x4 | 15.3% | 
| SLE Extended Cab | 1.7% | 
| SLE Extended Cab 4x4 | 23.7% | 
| SLE Regular Cab 4x4 | 3.4% | 
| SLT Crew Cab 4x4 | 28.0% | 
| SLT Crew Cab 4x4 Chassis Utility | 0.8% | 
| SLT Extended Cab 4x4 | 14.4% | 
| 2005 GMC Sierra 2500HD Engines | |
| 6.0 Liter OHV 16-Valve V8 | 43.2% | 
| 6.6 Liter OHV 32-Valve Duramax Turbo-Diesel V8 | 53.4% | 
| 8.1 Liter OHV 16-Valve Vortec V8 | 3.4% | 
| 2005 GMC Sierra 2500HD Transmissions | |
| 4 Speed Automatic | 46.6% | 
| 5 Speed Automatic | 53.4% | 
| 2005 GMC Sierra 2500HD Colors | |
| Carbon Metallic | 5.9% | 
| Deep Blue Metallic | 6.8% | 
| Fire Red | 8.5% | 
| Onyx Black | 7.6% | 
| Polo Green Metallic | 3.4% | 
| Sand Beige Metallic | 3.4% | 
| Silver Birch Metallic | 22.0% | 
| Sport Red Metallic | 6.8% | 
| Summit White | 35.6% | 
| 2005 GMC Sierra 2500HD Interiors | |
| Dark Pewter | 68.6% | 
| Neutral | 18.6% | 
| Pewter | 12.7% |