2003 GMC Sierra 3500 Specifications | 
				|
|---|---|
| 2003 GMC Sierra 3500 Sub Models | |
| Regular Cab 4x4 Chassis Dump Truck | 8.3% | 
| Regular Cab 4x4 Dually | 8.3% | 
| Regular Cab Dually Utility Truck | 8.3% | 
| Regular Cab Dump Truck | 8.3% | 
| SLE Crew Cab 4x4 Dually | 8.3% | 
| SLE Extended Cab 4x4 Dually | 8.3% | 
| SLE Regular Cab Dually | 8.3% | 
| SLT Crew Cab 4x4 Dually | 16.7% | 
| SLT Extended Cab 4x4 Dually | 8.3% | 
| SLT Extended Cab Dually | 16.7% | 
| 2003 GMC Sierra 3500 Engines | |
| 6.0 Liter OHV 16-Valve V8 | 16.7% | 
| 6.6 Liter OHV 32-Valve Duramax Turbo-Diesel V8 | 83.3% | 
| 2003 GMC Sierra 3500 Transmissions | |
| 4 Speed Automatic | 16.7% | 
| 5 Speed Automatic | 58.3% | 
| 5 Speed Manual | 25.0% | 
| 2003 GMC Sierra 3500 Colors | |
| Fire Red | 16.7% | 
| Marine Blue Metallic | 8.3% | 
| Onyx Black | 8.3% | 
| Pewter Metallic | 16.7% | 
| Summit White | 50.0% | 
| 2003 GMC Sierra 3500 Interiors | |
| Dark Pewter | 83.3% | 
| Neutral | 16.7% |