What is the towing capacity of the 2008 GMC Sierra 1500?

K-1500 Extended Cab Short Box (4WD), 4.8L V8, 4.10 axle: 7,500 lbs; K-1500 Extended Cab Short Box (4WD), 5.3L V8, 4.10 axle; K-1500 Crew Cab Short Box (4WD), 5.3L V8 4.10 axle, 6.0L V8 3.73 axle, 6.2L V8 3.42 axle: 8,500 lbs; K-1500 Crew Cab Short Box (4WD), 4.8L V8, 4.10 axle: 7,400 lbs; K-1500 Crew Cab Short Box (4WD), 6.0L V8, 4.10 axle, NHT Enhanced Trailering Performance Package: 10,500 lbs; K-1500 Regular Cab Long Box (4WD), 4.3L V6, 3.73 axle: 4,800 lbs; K-1500 Regular Cab Long Box (4WD), 4.8L V8, 4.10 axle: 7,900 lbs. Source: 2008 GMC Sierra 1500 Owner's Manual.

2008 GMC Sierra 1500 Towing Capacity

2008 GMC Sierra 1500 towing capacity: 7,500 lbs (K-1500 Extended Cab Short Box (4WD), 4.8L V8, 4.10 axle) or 8,500 lbs (K-1500 Extended Cab Short Box (4WD)…

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Depends on your configuration. Choose yours, or compare them here.

K-1500 Extended Cab Short Box (4WD), 4.8L V8, 4.10 axle 7,500 lbs
K-1500 Extended Cab Short Box (4WD), 5.3L V8, 4.10 axle; K-1500 Crew Cab Short Box (4WD), 5.3L V8 4.10 axle, 6.0L V8 3.73 axle, 6.2L V8 3.42 axle 8,500 lbs
K-1500 Crew Cab Short Box (4WD), 4.8L V8, 4.10 axle 7,400 lbs
K-1500 Crew Cab Short Box (4WD), 6.0L V8, 4.10 axle, NHT Enhanced Trailering Performance Package 10,500 lbs
K-1500 Regular Cab Long Box (4WD), 4.3L V6, 3.73 axle 4,800 lbs
K-1500 Regular Cab Long Box (4WD), 4.8L V8, 4.10 axle 7,900 lbs

2008 GMC Sierra 1500 Owner's Manual, PDF pages 361, 358 and 362

7,500 lbs (3 402 kg)Open the manual at this page ↗Added Oct 21, 2026 · Updated Oct 22, 2026

See where it's printed

Towing capacity · K-1500 Extended Cab Short Box (4WD), 4.8L V8, 4.10 axle · PDF page 361
7,500 lbs (3 402 kg)

Towing capacity · K-1500 Extended Cab Short Box (4WD), 5.3L V8, 4.10 axle; K-1500 Crew Cab Short Box (4WD), 5.3L V8 4.10 axle, 6.0L V8 3.73 axle, 6.2L V8 3.42 axle · PDF page 361
8,500 lbs (3 855 kg)

Towing capacity · K-1500 Crew Cab Short Box (4WD), 4.8L V8, 4.10 axle · PDF page 361
7,400 lbs (3 356 kg)

Towing capacity · K-1500 Crew Cab Short Box (4WD), 6.0L V8, 4.10 axle, NHT Enhanced Trailering Performance Package · PDF page 361
10,500 lbs (4 763 kg)

Towing capacity · K-1500 Regular Cab Long Box (4WD), 4.3L V6, 3.73 axle · PDF page 358
4,800 lbs (2 177 kg)

Towing capacity · K-1500 Regular Cab Long Box (4WD), 4.8L V8, 4.10 axle · PDF page 362
7,900 lbs (3 583 kg)

All versions

6 values

Applies to	Value	Manual says	Page
K-1500 Extended Cab Short Box (4WD), 4.8L V8, 4.10 axle	7,500 lbs	“7,500 lbs (3 402 kg)”	PDF page 361 ↗
K-1500 Extended Cab Short Box (4WD), 5.3L V8, 4.10 axle; K-1500 Crew Cab Short Box (4WD), 5.3L V8 4.10 axle, 6.0L V8 3.73 axle, 6.2L V8 3.42 axle	8,500 lbs	“8,500 lbs (3 855 kg)”	PDF page 361 ↗
K-1500 Crew Cab Short Box (4WD), 4.8L V8, 4.10 axle	7,400 lbs	“7,400 lbs (3 356 kg)”	PDF page 361 ↗
K-1500 Crew Cab Short Box (4WD), 6.0L V8, 4.10 axle, NHT Enhanced Trailering Performance Package	10,500 lbs	“10,500 lbs (4 763 kg)”	PDF page 361 ↗
K-1500 Regular Cab Long Box (4WD), 4.3L V6, 3.73 axle	4,800 lbs	“4,800 lbs (2 177 kg)”	PDF page 358 ↗
K-1500 Regular Cab Long Box (4WD), 4.8L V8, 4.10 axle	7,900 lbs	“7,900 lbs (3 583 kg)”	PDF page 362 ↗

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Original sourcePDF pages 361, 358 and 362

2008 GMC Sierra 1500 Owner's Manual