Makes · GMC · GMC Sierra 1500
2008 GMC Sierra 1500 towing capacity
Trim-level maximum towing capacity — 4,300 – 8,600 lbs across packages. Exact capacity depends on configuration. Payload is separate from towing capacity and is shown where GVWR and curb weight (or manufacturer payload) exist.
Tow Planner
Select your exact configuration and tell us what you're towing. We'll compare trailer weight, payload, tongue weight and the available vehicle limits. Year-level towing and payload answers below are available without selecting a configuration.
Which configuration do you have?
46 configurations
46 possible configurations match your selections.
What are you trying to do?
Choose a job to open interactive tools. Year-level towing and payload answers appear below even before you pick a configuration.
What can a 2008 GMC Sierra 1500 tow?
Across 46 configurations with published ratings, 2008 GMC Sierra 1500 towing capacity ranges from 4,300 lbs to 8,600 lbs. Exact capacity depends on configuration — not every 2008 GMC Sierra 1500 can tow the maximum value.
- Minimum published towing capacity in this dataset: 4,300 lbs
- Maximum published towing capacity in this dataset: 8,600 lbs
- Configurations with a towing rating: 46 of 46
Highest-rated example: Denali · 4x2 · Crew Cab — 8,600 lbs
Lowest-rated example: Work Truck · 4x2 — 4,300 lbs
Highest towing configurations
Top configurations by published maximum trailer rating for the 2008 GMC Sierra 1500. Payload is shown only when present in the dataset.
| Trim | Cab | Drivetrain | Bed | Axle ratio | Max towing | Payload |
|---|---|---|---|---|---|---|
| Denali | Crew Cab | 4x2 | 5.75 ft | 3.42 | 8,600 lbs | 1,617 lbs |
| Denali | Crew Cab | 4x4 | 5.75 ft | 3.42 | 8,400 lbs | 1,618 lbs |
| SLE2 | Crew Cab | 4x4 | 5.75 ft | 3.73 | 7,500 lbs | 1,674 lbs |
| SLE2 | Extended Cab | 4x4 | 5.75 ft | 3.73 | 7,500 lbs | 1,574 lbs |
| SLE2 | Extended Cab | 4x4 | 6.6 ft | 3.73 | 7,500 lbs | 1,734 lbs |
| SLT | Crew Cab | 4x4 | 5.75 ft | 3.73 | 7,500 lbs | 1,674 lbs |
| SLT | Extended Cab | 4x4 | 5.75 ft | 3.73 | 7,500 lbs | 1,574 lbs |
| SLT | Extended Cab | 4x4 | 6.6 ft | 3.73 | 7,500 lbs | 1,734 lbs |
| SLE1 | Extended Cab | 4x4 | 8 ft | 3.73 | 7,300 lbs | 1,590 lbs |
| SLE2 | Extended Cab | 4x4 | 8 ft | 3.73 | 7,300 lbs | 1,590 lbs |
Towing capacity by drivetrain
2008 GMC Sierra 1500 4x2 towing capacity
Range: 4,300 – 8,600 lbs (median 5,200 lbs) across 23 configurations in this dataset.
2008 GMC Sierra 1500 4x4 towing capacity
Range: 4,900 – 8,400 lbs (median 5,900 lbs) across 23 configurations in this dataset.
Towing capacity by cab style
2008 GMC Sierra 1500 Crew Cab towing capacity
Observed range: 4,600 – 8,600 lbs (12 configurations).
2008 GMC Sierra 1500 Extended Cab towing capacity
Observed range: 4,300 – 7,500 lbs (26 configurations).
2008 GMC Sierra 1500 Regular Cab towing capacity
Observed range: 4,700 – 5,900 lbs (8 configurations).
Towing capacity by axle ratio
| Axle ratio | Towing range | Configurations |
|---|---|---|
| 3.23 | 4,300 – 5,200 lbs | 12 |
| 3.42 | 5,400 – 8,600 lbs | 22 |
| 3.73 | 4,900 – 7,500 lbs | 12 |
2008 GMC Sierra 1500 payload capacity
Payload is not the same as towing capacity. Where both GVWR and curb weight exist in the catalog, payload is GVWR minus curb weight (or the manufacturer payload field when present). Payload covers people, cargo in the truck, hitch equipment, and trailer tongue weight — not the full trailer weight.
- Observed payload range: 1,477 – 1,947 lbs
- Configurations with payload data: 46
Highest-payload configurations
- SLE1 · 4x2 · Regular Cab — 1,947 lbs
- Work Truck · 4x2 · Regular Cab — 1,947 lbs
- SLE1 · 4x2 · Regular Cab — 1,806 lbs
- Work Truck · 4x2 · Regular Cab — 1,806 lbs
- SLE2 · 4x4 · Extended Cab — 1,734 lbs
Quick configuration comparison
Observed towing ranges from the 2008 GMC Sierra 1500 dataset. Values are min–max of published ratings in each group — not a claim that every unit in the group can tow the top figure.
Drivetrain
| Drivetrain | Towing range | Configs |
|---|---|---|
| 4x2 | 4,300 – 8,600 lbs | 23 |
| 4x4 | 4,900 – 8,400 lbs | 23 |
Cab styles
| Cab | Towing range | Configs |
|---|---|---|
| Crew Cab | 4,600 – 8,600 lbs | 12 |
| Extended Cab | 4,300 – 7,500 lbs | 26 |
| Regular Cab | 4,700 – 5,900 lbs | 8 |
Bed lengths
| Bed | Towing range | Configs |
|---|---|---|
| 5.75 ft | 4,400 – 8,600 lbs | 20 |
| 6.6 ft | 4,300 – 7,500 lbs | 14 |
| 8 ft | 4,700 – 7,300 lbs | 12 |
Axle ratios
| Axle | Towing range | Median | Configs |
|---|---|---|---|
| 3.23 | 4,300 – 5,200 lbs | 4,700 lbs | 12 |
| 3.42 | 5,400 – 8,600 lbs | 6,500 lbs | 22 |
| 3.73 | 4,900 – 7,500 lbs | 7,400 lbs | 12 |
Why does towing capacity vary for this vehicle?
Towing ratings vary across configurations. These are configuration differences present in our dataset:
- Drivetrain: 4x2, 4x4
- Axle ratios: 3.23, 3.42, 3.73
- Cab styles: Crew Cab, Extended Cab, Regular Cab
- Bed lengths: 5.75 ft, 6.6 ft, 8 ft
- Published towing range: 4,300 – 8,600 lbs
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Towing capacity by trim
| Trim | Max towing | Curb weight | Payload* | HP | Torque | Axle | Wheelbase |
|---|---|---|---|---|---|---|---|
| Denali 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 8,600 lbs | 5,182 lbs | 1,617 lbs | 403 | 417 | 3.42 | 143.5 |
| Denali 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 8,400 lbs | 5,383 lbs | 1,618 lbs | 403 | 417 | 3.42 | 143.5 |
| SLE2 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 7,500 lbs | 5,326 lbs | 1,674 lbs | 315 | 338 | 3.73 | 143.5 |
| SLE2 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 7,500 lbs | 5,226 lbs | 1,574 lbs | 315 | 338 | 3.73 | 133.9 |
| SLE2 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 7,500 lbs | 5,266 lbs | 1,734 lbs | 315 | 338 | 3.73 | 143.5 |
| SLT 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 7,500 lbs | 5,326 lbs | 1,674 lbs | 315 | 338 | 3.73 | 143.5 |
| SLT 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 7,500 lbs | 5,226 lbs | 1,574 lbs | 315 | 338 | 3.73 | 133.9 |
| SLT 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 7,500 lbs | 5,266 lbs | 1,734 lbs | 315 | 338 | 3.73 | 143.5 |
| SLE1 4x4 Extended Cab 8 ft. box 157.5 in. WB | 7,300 lbs | 5,410 lbs | 1,590 lbs | 315 | 338 | 3.73 | 157.5 |
| SLE2 4x4 Extended Cab 8 ft. box 157.5 in. WB | 7,300 lbs | 5,410 lbs | 1,590 lbs | 315 | 338 | 3.73 | 157.5 |
| SLT 4x4 Extended Cab 8 ft. box 157.5 in. WB | 7,300 lbs | 5,410 lbs | 1,590 lbs | 315 | 338 | 3.73 | 157.5 |
| Work Truck 4x4 Extended Cab 8 ft. box 157.5 in. WB | 7,300 lbs | 5,410 lbs | 1,590 lbs | 315 | 338 | 3.73 | 157.5 |
| SLE2 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 6,800 lbs | 4,870 lbs | 1,530 lbs | 315 | 338 | 3.42 | 133.9 |
| SLT 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 6,800 lbs | 4,870 lbs | 1,530 lbs | 315 | 338 | 3.42 | 133.9 |
| SLE2 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 6,700 lbs | 4,923 lbs | 1,477 lbs | 315 | 338 | 3.42 | 143.5 |
| SLT 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 6,700 lbs | 4,923 lbs | 1,477 lbs | 315 | 338 | 3.42 | 143.5 |
| SLE2 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6,600 lbs | 5,148 lbs | 1,652 lbs | 315 | 338 | 3.42 | 143.5 |
| SLT 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6,600 lbs | 5,148 lbs | 1,652 lbs | 315 | 338 | 3.42 | 143.5 |
| SLE1 4x2 Extended Cab 8 ft. box 157.5 in. WB | 6,500 lbs | 5,218 lbs | 1,682 lbs | 315 | 338 | 3.42 | 157.5 |
| SLE2 4x2 Extended Cab 8 ft. box 157.5 in. WB | 6,500 lbs | 5,218 lbs | 1,682 lbs | 315 | 338 | 3.42 | 157.5 |
| SLT 4x2 Extended Cab 8 ft. box 157.5 in. WB | 6,500 lbs | 5,218 lbs | 1,682 lbs | 315 | 338 | 3.42 | 157.5 |
| Work Truck 4x2 Extended Cab 8 ft. box 157.5 in. WB | 6,500 lbs | 5,218 lbs | 1,682 lbs | 315 | 338 | 3.42 | 157.5 |
| SLE1 4x4 Regular Cab 6.6 ft. box 119 in. WB | 5,900 lbs | 4,678 lbs | 1,722 lbs | 295 | 305 | 3.42 | 119.0 |
| SLE1 4x4 Regular Cab 8 ft. box 133 in. WB | 5,900 lbs | 4,825 lbs | 1,575 lbs | 295 | 305 | 3.42 | 133.0 |
| SL 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 5,500 lbs | 5,266 lbs | 1,734 lbs | 295 | 305 | 3.42 | 143.5 |
| SLE1 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 5,500 lbs | 5,226 lbs | 1,574 lbs | 295 | 305 | 3.42 | 133.9 |
| SLE1 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 5,500 lbs | 5,266 lbs | 1,734 lbs | 295 | 305 | 3.42 | 143.5 |
| Work Truck 4x4 Extended Cab 5.75 ft. box 133.9 in. WB | 5,500 lbs | 5,226 lbs | 1,574 lbs | 295 | 305 | 3.42 | 133.9 |
| Work Truck 4x4 Extended Cab 6.6 ft. box 143.5 in. WB | 5,500 lbs | 5,266 lbs | 1,734 lbs | 295 | 305 | 3.42 | 143.5 |
| SL 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 5,400 lbs | 5,326 lbs | 1,674 lbs | 295 | 305 | 3.42 | 143.5 |
| SLE1 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 5,400 lbs | 5,326 lbs | 1,674 lbs | 295 | 305 | 3.42 | 143.5 |
| Work Truck 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 5,400 lbs | 5,326 lbs | 1,674 lbs | 295 | 305 | 3.42 | 143.5 |
| SLE1 4x2 Regular Cab 6.6 ft. box 119 in. WB | 5,200 lbs | 4,453 lbs | 1,947 lbs | 295 | 305 | 3.23 | 119.0 |
| SLE1 4x2 Regular Cab 8 ft. box 133 in. WB | 5,100 lbs | 4,594 lbs | 1,806 lbs | 295 | 305 | 3.23 | 133.0 |
| Work Truck 4x4 Regular Cab 6.6 ft. box 119 in. WB | 5,100 lbs | 4,678 lbs | 1,722 lbs | 195 | 260 | 3.73 | 119.0 |
| Work Truck 4x4 Regular Cab 8 ft. box 133 in. WB | 4,900 lbs | 4,825 lbs | 1,575 lbs | 195 | 260 | 3.73 | 133.0 |
| SLE1 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 4,800 lbs | 4,870 lbs | 1,530 lbs | 295 | 305 | 3.23 | 133.9 |
| Work Truck 4x2 Regular Cab 6.6 ft. box 119 in. WB | 4,800 lbs | 4,453 lbs | 1,947 lbs | 195 | 260 | 3.23 | 119.0 |
| SL 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 4,700 lbs | 4,923 lbs | 1,477 lbs | 295 | 305 | 3.23 | 143.5 |
| SLE1 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 4,700 lbs | 4,923 lbs | 1,477 lbs | 295 | 305 | 3.23 | 143.5 |
| Work Truck 4x2 Regular Cab 8 ft. box 133 in. WB | 4,700 lbs | 4,594 lbs | 1,806 lbs | 195 | 260 | 3.23 | 133.0 |
| SL 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 4,600 lbs | 5,148 lbs | 1,652 lbs | 295 | 305 | 3.23 | 143.5 |
| SLE1 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 4,600 lbs | 5,148 lbs | 1,652 lbs | 295 | 305 | 3.23 | 143.5 |
| Work Truck 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 4,600 lbs | 5,148 lbs | 1,652 lbs | 295 | 305 | 3.23 | 143.5 |
| Work Truck 4x2 Extended Cab 5.75 ft. box 133.9 in. WB | 4,400 lbs | 4,870 lbs | 1,530 lbs | 195 | 260 | 3.23 | 133.9 |
| Work Truck 4x2 Extended Cab 6.6 ft. box 143.5 in. WB | 4,300 lbs | 4,923 lbs | 1,477 lbs | 195 | 260 | 3.23 | 143.5 |
* Payload = manufacturer payload when present, otherwise GVWR − curb weight. Towing capacity is a separate rating and is not the same as payload.
What affects the rating
Higher figures usually need the tow package, the right axle ratio, and enough cooling. Passengers, fuel, gear, and tongue weight all eat into what you can safely pull — stay under both the trailer rating and the vehicle’s payload.