Specs - 2006 GMC Sierra Denali Technical Specifications
| Brakes | BASE |
|---|
| Brake ABS System | Four-Wheel |
| Disc - Front (Yes or ) | Yes |
| Disc - Rear (Yes or ) | Yes |
| Front Brake Rotor Diam x Thickness (in) | 11.8 x 1.18 |
| Rear Brake Rotor Diam x Thickness (in) | 13.6 x 0.78 |
| Cargo Area Dimensions | BASE |
|---|
| Cargo Box Width @ Wheelhousings (in) | 50.0 |
| Engine | BASE |
|---|
| Displacement | 6.0L/364 |
| Engine Type | Gas V8 |
| SAE Net Horsepower @ RPM | 345 @ 5200 |
| SAE Net Torque @ RPM | 380 @ 4000 |
| Exterior Dimensions | BASE |
|---|
| Height, Overall (in) | 75.0 |
| Wheelbase (in) | 143.5 |
| Width, Max w/o mirrors (in) | 78.5 |
| Fuel Tank | BASE |
|---|
| Fuel Tank Capacity, Approx (gal) | 26 |
| Steering | BASE |
|---|
| Steering Type | Pwr |
| Turning Diameter - Curb to Curb (ft) | 46.1 |
| Tires | BASE |
|---|
| Front Tire Size | P265/70R17 |
| Rear Tire Size | P265/70R17 |
| Transmission | BASE |
|---|
| Drivetrain | All Wheel Drive |
| Trans Description Cont. | HD Automatic w/OD |
| Trans Type | 4 |
| Vehicle | BASE |
|---|
| Front Head Room (in) | 40.7 |
| Front Leg Room (in) | 41.3 |
| Front Shoulder Room (in) | 65.2 |
| Passenger Capacity | 5 |
| Second Head Room (in) | 40.2 |
| Second Leg Room (in) | 39.1 |
| Second Shoulder Room (in) | 65.1 |