2018 GMC Sierra 3500 HD 3500 Extended Cab SLT Headroom Specs
Headroom Specs
| First Row Headroom (in) | 42.8 in. |
|---|
| First Row Headroom (cm) | 108.7 cm |
|---|
| Second Row Headroom (in) | 38.7 in. |
|---|
| Second Row Headroom (cm) | 98.3 cm |
|---|
All Available Specs
Basics
| Year |
2018 |
| Make |
GMC |
| Model |
Sierra 3500 |
| Trim |
HD 3500 Extended Cab SLT |
Seating & Access
Powertrain
Tires
| Front Tire Size |
LT265/70R18E |
| Front Tire Width |
265 |
| Front Tire Aspect Ratio |
70 |
| Front Rim Size |
18 |
| Front Tire Load Capacity |
E |
| Rear Tire Size |
LT265/70R18E |
| Rear Tire Width |
265 |
| Rear Tire Aspect Ratio |
70 |
| Rear Rim Size |
18 |
| Rear Tire Load Capacity |
E |
Wheels
| Front Wheel Size |
18 x 8.0 |
| Rear Wheel Size |
18 x 8.0 |
| Front Wheel Material |
Aluminum |
| Rear Wheel Material |
Aluminum |
Legroom
| First Row Legroom (in) |
45.3 in. |
| First Row Legroom (cm) |
115.1 cm |
| Second Row Legroom (in) |
34.6 in. |
| Second Row Legroom (cm) |
87.9 cm |
Headroom
| First Row Headroom (in) |
42.8 in. |
| First Row Headroom (cm) |
108.7 cm |
| Second Row Headroom (in) |
38.7 in. |
| Second Row Headroom (cm) |
98.3 cm |
Ground Clearance
| Rear Ground Clearance (in) |
8.8 in. |
| Rear Ground Clearance (cm) |
22.4 cm |
Height & Length
| Height (in) |
78 in. |
| Height (cm) |
198.1 cm |
| Height (ft) |
6.5 ft |
| Height (m) |
2.0 m |
| Length (in) |
248.9 in. |
| Length (cm) |
632.2 cm |
| Length (ft) |
20.7 ft |
| Length (m) |
6.3 m |
Width & Track
| Width w/o Mirrors (in) |
80.5 in. |
| Width w/o Mirrors (cm) |
204.5 cm |
| Width w/o Mirrors (ft) |
6.7 ft |
| Width w/o Mirrors (m) |
2.0 m |
Wheelbase
| Wheelbase (in) |
158.1 in. |
| Wheelbase (cm) |
401.6 cm |
| Wheelbase (ft) |
13.2 ft |
| Wheelbase (m) |
4.0 m |