1999 GMC Sierra 2500 towing capacity
The 1999 GMC Sierra 2500 is published in 39 configurations, with tow ratings ranging from 5,000 to 8,000 lb depending on cab, bed, drivetrain, and hitch class. The peak figure (8,000 lb) sits in full-size truck and SUV territory.
The table below lists every trim of the 1999 GMC Sierra 2500 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 |
|---|---|---|---|---|---|---|---|---|
| SL 4x2 Regular Cab 131.5 in. WB | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 4,820 | 3,780 |
| SL 4x2 Extended Cab 155.5 in. WB | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 5,084 | 3,516 |
| SLE 4x2 Extended Cab 155.5 in. WB | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 5,084 | 3,516 |
| SLT 4x2 Extended Cab 155.5 in. WB | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 5,084 | 3,516 |
| HD SL 4x4 Standard Cab 131.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,178 | 3,422 |
| HD SLE 4x4 Standard Cab 131.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,178 | 3,422 |
| HD SLT 4x4 Standard Cab 131.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,178 | 3,422 |
| HD SL 4x4 Extended Cab 155.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,507 | 3,093 |
| HD SLE 4x4 Extended Cab 155.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,507 | 3,093 |
| HD SLT 4x4 Extended Cab 155.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,507 | 3,093 |
| SL 4x2 Crew Cab 6.6 ft. box | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 5,416 | 3,184 |
| SLE 4x2 Crew Cab 6.6 ft. box | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 5,416 | 3,184 |
| SLT 4x2 Crew Cab 6.6 ft. box | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 5,416 | 3,184 |
| SL 4x4 Crew Cab 6.6 ft. box | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,707 | 2,893 |
| SLE 4x4 Crew Cab 6.6 ft. box | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,707 | 2,893 |
| SLT 4x4 Crew Cab 6.6 ft. box | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,707 | 2,893 |
| SL 4x2 Regular Cab 8 ft. box LD | — | 270 | 315 | 3.73 | 5,000 | 7,200 | 4,586 | 2,614 |
| SLE 4x2 Regular Cab 8 ft. box LD | — | 270 | 315 | 3.73 | 5,000 | 7,200 | 4,586 | 2,614 |
| SL 4x4 Regular Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 5,266 | 3,334 |
| SLE 4x4 Regular Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 5,266 | 3,334 |
| SL 4x2 Extended Cab 6.6 ft. box HD | — | 270 | 315 | 3.42 | 6,500 | 7,200 | 4,766 | 2,434 |
| SLE 4x2 Extended Cab 6.6 ft. box HD | — | 270 | 315 | 3.42 | 6,500 | 7,200 | 4,766 | 2,434 |
| SLT 4x2 Extended Cab 6.6 ft. box HD | — | 270 | 315 | 3.42 | 6,500 | 7,200 | 4,766 | 2,434 |
| SL 4x4 Extended Cab 6.6 ft. box HD | — | 300 | 355 | 3.73 | 6,500 | 8,600 | 5,485 | 3,115 |
| SLE 4x4 Extended Cab 6.6 ft. box HD | — | 300 | 355 | 3.73 | 6,500 | 8,600 | 5,485 | 3,115 |
| SLT 4x4 Extended Cab 6.6 ft. box HD | — | 300 | 355 | 3.73 | 6,500 | 8,600 | 5,485 | 3,115 |
| SL 4x2 Extended Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 5,318 | 3,282 |
| SLE 4x2 Extended Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 5,318 | 3,282 |
| SLT 4x2 Extended Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 5,318 | 3,282 |
| SL 4x4 Extended Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 6,500 | 8,600 | 5,523 | 3,077 |
| SLE 4x4 Extended Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 6,500 | 8,600 | 5,523 | 3,077 |
| SLT 4x4 Extended Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 6,500 | 8,600 | 5,523 | 3,077 |
| SLE 4x2 Regular Cab 131.5 in. WB | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 4,820 | 3,780 |
| SLT 4x2 Regular Cab 131.5 in. WB | — | 255 | 330 | 3.73 | 8,000 | 8,600 | 4,820 | 3,780 |
| SL 4x4 Extended Cab 141.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,300 | 3,300 |
| SLE 4x4 Extended Cab 141.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,300 | 3,300 |
| SLT 4x4 Extended Cab 141.5 in. WB | — | 255 | 330 | 3.73 | 7,500 | 8,600 | 5,300 | 3,300 |
| SL 4x2 Regular Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 4,999 | 3,601 |
| SLE 4x2 Regular Cab 8 ft. box HD | — | 300 | 355 | 3.73 | 5,000 | 8,600 | 4,999 | 3,601 |
How to interpret the headline tow figure
Tow ratings at this level are normally achievable with a conventional Class II or Class III receiver hitch. Always verify your vehicle has the manufacturer's tow package installed if you intend to tow at the upper end of the rating, and inspect the door-jamb sticker for the actual maximum permitted on your specific configuration.
Other 1999 GMC models
The rest of GMC's 1999 lineup, ranked by maximum tow rating. Click through for the per-trim breakdown of any of these.
| Model | Max tow (lb) |
|---|---|
| 1999 GMC Sierra 2500 Extended CAB | 10,500 |
| 1999 GMC Sierra 2500 HD Extended CAB | 10,500 |
| 1999 GMC Sierra 2500 HD Regular CAB | 10,500 |
| 1999 GMC Sierra 2500 Regular CAB | 10,500 |
| 1999 GMC Savana 3500 Cargo | 10,000 |
| 1999 GMC Savana 3500 Passenger | 10,000 |
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.