2008 GMC Sierra 1500 Dimensions, Sizes & Specifications
Based on 46 trims — exact values when identical, ranges when trims differ. Generation: Third generation (GMT900).
- Length205.6 in – 248.7 in
- Width80.0 in
- Height73.5 in – 73.9 in
- Wheelbase119.0 in – 157.5 in
- Ground clearance11.8 in – 13.4 in
- Curb weight4,453 lb – 5,410 lb
- Length205.6 in – 248.7 in
- Height73.5 in – 73.9 in
- Wheelbase119.0 in – 157.5 in
- Ground clearance11.8 in – 13.4 in
- Curb weight4,453 lb – 5,410 lb
- Width80.0 in
Proportional exterior silhouette from catalog length, width and height. The explorer below is a systems map — different purpose, not a second silhouette.
Explore your 2008 GMC Sierra 1500
Interactive systems diagram for this model year — measure, check fitment, and open the matching SpecSizes tools. Schematic only; not photorealistic body styling.
- Dimensions
- Wheels
- Tires
- Wipers
- Interior
Available for this vehicle
- Dimensions
- Wheels
- Tires
- Wipers
- Interior
Select a system below or on the diagram. This schematic marks measurement areas — it is not body-accurate styling.
Catalog summaries
Exterior: 205.6 in – 248.7 in · 80.0 in · 73.5 in – 73.9 in. Full dimensions
Wheels: bolt pattern 6x139.7, bore 78.1 mm. Wheel sizes
Tires: P265/65SR18.0 BSW AS, P245/70SR17.0 BSW AS, P265/70SR17.0 BSW AS, 245/70R17…. Tire sizes
What do you want to check?
- Compare this vehicleSize vs a competitor
- See size by yearModel history & chart
- Will it fit in my garage?Door & bay clearance calculator
- Find cars similar in sizeExterior length, width & height neighbors
- Browse cars by sizeReverse-search by length, width & height
- Check tire sizeOEM tire sizes
- Check wiper sizeBlade lengths
- Check wheel sizeBolt pattern, bore, offset
- Wheel fitment & interchangeCompare donor or custom wheels
Exterior dimensions
| Length | 205.6 in – 248.7 in |
|---|---|
| Width | 80.0 in |
| Height | 73.5 in – 73.9 in |
| Wheelbase | 119.0 in – 157.5 in |
| Ground clearance | 11.8 in – 13.4 in |
Interior dimensions
| Front headroom | 41.5 in |
|---|---|
| Rear headroom | 39.3 in – 40.6 in |
| Front legroom | 41.3 in |
| Rear legroom | 34.3 in – 38.7 in |
| Front shoulder room | 65.2 in |
| Rear shoulder room | 65.2 in – 65.3 in |
| Front hip room | 62.5 in |
| Rear hip room | 61.9 in – 65.5 in |
Weight & capacities
| Curb weight | 4,453 lb – 5,410 lb |
|---|---|
| GVWR | 6,400 lb – 7,000 lb |
| Fuel tank | 26.0 gal – 34.0 gal |
| Max towing capacity | 4,300 lb – 8,600 lb |
Engine
| Torque | 260 – 417 lb-ft |
|---|
Torque shown in lb-ft as stored in the catalog.
Wheels, tires & maintenance sizes
Tire sizes Full tire size page → · Wheel fitment →
- P265/65SR18.0 BSW AS
- P245/70SR17.0 BSW AS
- P265/70SR17.0 BSW AS
- 245/70R17
- 265/65R18
- 265/70R17
- 275/45R22
- 275/55R20
- 295/35R24
- 305/30R26
Wiper sizes Full wiper size page →
- Driver22"
- Passenger22"
Trim-by-trim dimensions (46 trims)
| Trim | Length | Width | Height | Wheelbase | Clearance | Curb wt |
|---|---|---|---|---|---|---|
| Denali 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.8 | 143.5 | 12.3 | 5182 |
| Denali 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 12.1 | 5383 |
| SL 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.8 | 143.5 | 12.3 | 5148 |
| SL 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.9 | 143.5 | 12.1 | 4923 |
| SL 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 12.1 | 5326 |
| SL 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 11.8 | 5266 |
| SLE1 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.8 | 143.5 | 12.3 | 5148 |
| SLE1 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.8 | 133.9 | 12.8 | 4870 |
| SLE1 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.9 | 143.5 | 12.1 | 4923 |
| SLE1 4x2 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.6 | 157.5 | 12.8 | 5218 |
| SLE1 4x2 Regular Cab 6.6 ft. box 119 in. WB | 205.6 | 80.0 | 73.6 | 119.0 | 13.4 | 4453 |
| SLE1 4x2 Regular Cab 8 ft. box 133 in. WB | 224.5 | 80.0 | 73.5 | 133.0 | 13.4 | 4594 |
| SLE1 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 12.1 | 5326 |
| SLE1 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.7 | 133.9 | 12.5 | 5226 |
| SLE1 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 11.8 | 5266 |
| SLE1 4x4 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.5 | 157.5 | 12.5 | 5410 |
| SLE1 4x4 Regular Cab 6.6 ft. box 119 in. WB | 205.6 | 80.0 | 73.8 | 119.0 | 13.1 | 4678 |
| SLE1 4x4 Regular Cab 8 ft. box 133 in. WB | 224.5 | 80.0 | 73.8 | 133.0 | 13.1 | 4825 |
| SLE2 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.8 | 143.5 | 12.3 | 5148 |
| SLE2 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.8 | 133.9 | 12.8 | 4870 |
| SLE2 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.9 | 143.5 | 12.1 | 4923 |
| SLE2 4x2 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.6 | 157.5 | 12.8 | 5218 |
| SLE2 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 12.1 | 5326 |
| SLE2 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.7 | 133.9 | 12.5 | 5226 |
| SLE2 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 11.8 | 5266 |
| SLE2 4x4 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.5 | 157.5 | 12.5 | 5410 |
| SLT 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.8 | 143.5 | 12.3 | 5148 |
| SLT 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.8 | 133.9 | 12.8 | 4870 |
| SLT 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.9 | 143.5 | 12.1 | 4923 |
| SLT 4x2 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.6 | 157.5 | 12.8 | 5218 |
| SLT 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 12.1 | 5326 |
| SLT 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.7 | 133.9 | 12.5 | 5226 |
| SLT 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 11.8 | 5266 |
| SLT 4x4 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.5 | 157.5 | 12.5 | 5410 |
| Work Truck 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.8 | 143.5 | 12.3 | 5148 |
| Work Truck 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.8 | 133.9 | 12.8 | 4870 |
| Work Truck 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.9 | 143.5 | 12.1 | 4923 |
| Work Truck 4x2 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.6 | 157.5 | 12.8 | 5218 |
| Work Truck 4x2 Regular Cab 6.6 ft. box 119 in. WB | 205.6 | 80.0 | 73.6 | 119.0 | 13.4 | 4453 |
| Work Truck 4x2 Regular Cab 8 ft. box 133 in. WB | 224.5 | 80.0 | 73.5 | 133.0 | 13.4 | 4594 |
| Work Truck 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 12.1 | 5326 |
| Work Truck 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 220.3 | 80.0 | 73.7 | 133.9 | 12.5 | 5226 |
| Work Truck 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 229.9 | 80.0 | 73.7 | 143.5 | 11.8 | 5266 |
| Work Truck 4x4 Extended Cab 8 ft. box 157.5 in. WB | 248.7 | 80.0 | 73.5 | 157.5 | 12.5 | 5410 |
| Work Truck 4x4 Regular Cab 6.6 ft. box 119 in. WB | 205.6 | 80.0 | 73.8 | 119.0 | 13.1 | 4678 |
| Work Truck 4x4 Regular Cab 8 ft. box 133 in. WB | 224.5 | 80.0 | 73.8 | 133.0 | 13.1 | 4825 |
Values in inches / pounds as stored. Ranges above reflect trim variation.
Same generation (Third generation (GMT900)): years 2007–2013. View model overview