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| Powertrain | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 2WD | Duramax® 6.6L Turbo-Diesel V8 engine 2WD | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 4WD | Duramax® 6.6L Turbo-Diesel V8 engine 4WD |
| Fuel Type | Gas V8 | Turbocharged Diesel V8 | Gas V8 | Turbocharged Diesel V8 |
| Displacement (liters/cu. in.) | 6.0L/366 | 6.6L/403 | 6.0L/366 | 6.6L/403 |
| 6-speed automatic heavy-duty transmission | Standard | N/A | Standard | N/A |
| Allison 1000 6-speed automatic transmission | N/A | Standard | N/A | Standard |
| Horsepower @ RPM | 360 @ 5400 | 397 @ 3000 | 360 @ 5400 | 397 @ 3000 |
| Torque @ RPM | 380 @ 4200 | 765 @ 1600 | 380 @ 4200 | 765 @ 1600 |
| Fuel Injection | Electronic Fuel Injection | Direct Injection | Electronic Fuel Injection | Direct Injection |
| Axle Ratio | 3.73 | 3.73 | 3.73 | 3.73 |
| Battery Cold Cranking Amps | 600 | 730 | 600 | 730 |
| Alternator (Amps) | 125 | 125 | 125 | 125 |
| Fuel Economy | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 2WD | Duramax® 6.6L Turbo-Diesel V8 engine 2WD | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 4WD | Duramax® 6.6L Turbo-Diesel V8 engine 4WD |
| City (MPG) | N/A | N/A | N/A | N/A |
| Highway (MPG) | N/A | N/A | N/A | N/A |
| Fuel Tank Capacity (gal.) | 36.0 gal | 36.0 gal | 36.0 gal | 36.0 gal |
| Steering/Suspension | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 2WD | Duramax® 6.6L Turbo-Diesel V8 engine 2WD | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 4WD | Duramax® 6.6L Turbo-Diesel V8 engine 4WD |
| Front Suspension | Independent | Independent | Independent | Independent |
| Rear Suspension | Multi-Leaf | Multi-Leaf | Multi-Leaf | Multi-Leaf |
| StabiliTrak Electronic Stability Control System | Standard | Standard | Standard | Standard |
| Traction Control System | Standard | Standard | Standard | Standard |
| Turning Circle (ft.) | 50.5 ft | 50.5 ft | 50.5 ft | 50.5 ft |
| Brakes | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 2WD | Duramax® 6.6L Turbo-Diesel V8 engine 2WD | Vortec® 6.0L Variable Valve Timing V8 FlexFuel engine 4WD | Duramax® 6.6L Turbo-Diesel V8 engine 4WD |
| 4-Wheel Disc Brakes | Yes | Yes | Yes | Yes |
| 4-Wheel ABS | Yes | Yes | Yes | Yes |