2003 Chevrolet-GMC Silverado/Sierra 2500 HD Ext. Cab 2WD LWB towing capacity
The 2003 Chevrolet-GMC Silverado/Sierra 2500 HD Ext. Cab 2WD LWB is published in 3 configurations, with tow ratings ranging from 10,200 to 12,000 lb depending on cab, bed, drivetrain, and hitch class. The peak figure (12,000 lb) sits in half-ton plus / heavy-duty truck territory.
The table below lists every trim of the 2003 Chevrolet-GMC Silverado/Sierra 2500 HD Ext. Cab 2WD LWB with the engine, drivetrain, axle ratio, horsepower, torque, GVWR, curb weight, and payload that go with that trim's headline tow rating. Manufacturers often publish more than one tow figure per truck — a conventional bumper-hitch rating, a weight-distributing rating, and a gooseneck or fifth-wheel rating — so the highest number here is the maximum across all hitch classes the source carries for the trim.
Per-trim breakdown
| Configuration | Engine | HP | Torque | Axle | Tow (lb) | GVWR | Curb | Payload |
|---|---|---|---|---|---|---|---|---|
| 6.0L V-8 | 6.0L V-8 | — | — | — | 10,200 | — | — | — |
| 8.1L V-8 | 8.1L V-8 | — | — | — | 12,000 | — | — | — |
| TD 6.6L V-8 | TD 6.6L V-8 | — | — | — | 12,000 | — | — | — |
How to interpret the headline tow figure
Ratings in this range are typically achievable with a weight-distributing hitch and the appropriate tow package. The conventional bumper-pull rating without weight distribution will be lower than the headline figure shown here — usually 5,000 to 8,000 lb. Confirm the hitch class on your vehicle's door-jamb sticker before towing at the upper end.
Other 2003 Chevrolet-GMC models
The rest of Chevrolet-GMC's 2003 lineup, ranked by maximum tow rating. Click through for the per-trim breakdown of any of these.
Notes
- 4.10 axle ratio
- 3.73 axle ratio
- 3.73 axle ratio
All figures sourced from manufacturer documentation. See our methodology for how the dataset is compiled. Always confirm against your vehicle's door-jamb sticker before towing.