Weight Capacities

  Regular
Cab		 Extended Cab Crew Cab
Long Box Long Box Long Box
Gross Vehicle Weight Rating (GVWR), lbs§§ (2WD, single rear wheels) 9,700 9,900 9,900
Gross Vehicle Weight Rating (GVWR), lbs§§ (4WD, single rear wheels) 9,900 9,900 9,900
Gross Vehicle Weight Rating (GVWR), lbs§§ (2WD, dual rear wheels) Not Available 11,400 11,400
Gross Vehicle Weight Rating (GVWR), lbs§§ (4WD, dual rear wheels) 11,400 11,400 11,400
Curb weight, lbs (2WD, single rear wheels) 4,888 5,896 6,027
Curb weight, lbs (4WD, single rear wheels) 5,719 6,153 6,308
Curb weight, lbs (2WD, dual rear wheels) Not Available 6,274 6,404
Curb weight, lbs (4WD, dual rear wheels) 6,091 6,521 6,672
Max Payload, lbs (2WD, single rear wheels) 4,812 4,004 3,873
Max Payload, lbs (4WD, single rear wheels) 4,181 3,747 3,592
Max Payload, lbs (2WD, dual rear wheels) Not Available 5,126 4,996
Max Payload, lbs (4WD, dual rear wheels) 5,309 4,879 4,728
Maximum payload capacity includes weight of driver, passengers, optional equipment, and cargo.
§§When properly equipped; includes weight of vehicle, passengers, cargo, and equipment.

Spring & Axle Capacities

  Reg Ext Crew
Front axle, lbs (2WD) 4,800 4,800 4,800
Front axle, lbs (4WD) 4,800 4,800 4,800
Front spring capacity, lbs (2WD, single rear wheels) 4,800 4,800 4,800
Front spring capacity, lbs (4WD, single rear wheels) 4,800 4,800 4,800
Front spring capacity, lbs (2WD, dual rear wheels) Not Available 4,800 4,800
Front spring capacity, lbs (4WD, dual rear wheels) 4,500 4,800 4,800
Rear axle, lbs (2WD, single rear wheels) 6,500 6,500 6,500
Rear axle, lbs (4WD, single rear wheels) 6,500 6,500 6,500
Rear axle, lbs (2WD, dual rear wheels) Not Available 9,200 9,200
Rear axle, lbs (4WD, dual rear wheels) 9,200 9,200 9,200
Rear spring capacity, lbs (2WD, single rear wheels) 6,500 6,500 6,500
Rear spring capacity, lbs (4WD, single rear wheels) 6,500 6,500 6,500
Rear spring capacity, lbs (2WD, dual rear wheels) Not Available 8,200 8,200
Rear spring capacity, lbs (4WD, dual rear wheels) 8,200 8,200 8,200

Towing Capacity

Automatic Transmission Ratings with Ball Hitch Vortec 6.0L V8 Duramax 6.6L
Tubro Diesel V8
Axle
Ratio		 Max
Trailer/
Towing
Capacity lbs.**		 Axle
Ratio		 Max
Trailer/
Towing
Capacity lbs.**
Reg Cab Long Box 2WD
 3.73
4.10		 10,100
12,600		 Not Available Not Available
Reg Cab Long Box 4WD, single rear wheels
 3.73
4.10		 10,000
12,500		 3.73 13,000
Reg Cab Long Box 4WD, dual rear wheels
 3.73
4.10		 9,700
12,200		 3.73 13,000
Ext Cab Long Box 2WD, single rear wheels
 3.73
4.10		 9,900
12,400		 3.73 13,000
Ext Cab Long Box 4WD, single rear wheels
 3.73
4.10		 9,600
12,100		 3.73 13,000
Ext Cab Long Box 2WD, dual rear wheels
 3.73
4.10		 9,500
12,000		 3.73 13,000
Ext Cab Long Box 4WD, dual rear wheels
 3.73
4.10		 9,200
11,700		 3.73 13,000
Crew Cab Long Box 2WD, single rear wheels
 3.73
4.10		 9,700
12,200		 3.73 13,000
Crew Cab Long Box 4WD, single rear wheels
 3.73
4.10		 9,400
11,900		 3.73 13,000
Crew Cab Long Box 2WD, dual rear wheels
 3.73
4.10		 9,300
11,800		 3.73 13,000
Crew Cab Long Box 4WD, dual rear wheels
 3.73
4.10		 9,100
11,600		 3.73 13,000
Automatic Transmission Ratings with Gooseneck/Fifth-Wheel Trailer Vortec 6.0L V8 Duramax 6.6L
Tubro Diesel V8
Axle
Ratio		 Max
Trailer/
Towing
Capacity lbs.**		 Axle
Ratio		 Max
Trailer/
Towing
Capacity lbs.**
Reg Cab Long Box 2WD
 4.10 12,600 Not Available Not Available
Reg Cab Long Box 4WD, single rear wheels
 4.10 12,500 3.73 15,400
Reg Cab Long Box 4WD, dual rear wheels
 4.10 12,200 3.73 16,500
Ext Cab Long Box 2WD, single rear wheels
 4.10 12,400 3.73 15,400
Ext Cab Long Box 4WD, single rear wheels
 4.10 12,100 3.73 14,900
Ext Cab Long Box 2WD, dual rear wheels
 4.10 12,000 3.73 16,300
Ext Cab Long Box 4WD, dual rear wheels
 4.10 11,700 3.73 16,100
Crew Cab Long Box 2WD, single rear wheels
 4.10 12,200 3.73 15,000
Crew Cab Long Box 4WD, single rear wheels
 4.10 11,900 3.73 14,800
Crew Cab Long Box 2WD, dual rear wheels
 4.10 11,800 3.73 16,200
Crew Cab Long Box 4WD, dual rear wheels
 4.10 11,600 3.73 15,900
Features  Reg/Ext and Crew Ext and Crew
Cab
Work
Truck		 SLE SLT
Cooling, auxiliary external transmission oil cooler, heavy duty air-to-oil Standard Standard Standard
Cooling, external engine oil cooler, heavy duty air-to-oil, integral with driver side of radiator tank Standard Standard Standard
Snow Plow Prep Package, includes 15-amp power for backup and roof emergency light, high-flow front bumper, forward lamp wiring harness, Provision for cab roof mounted lamp/beacon, instrument panel jumper wiring harness for electric trailer brake controller and Skid Plate Package Available Available Not Available
Trailering equipment, heavy-duty, includes trailering hitch platform and 2.5-inch receiver with 2" adapter, 7-wire harness (harness includes wires for: park lamps, backup lamps, right turn, left turn, electric brake lead, battery and ground) with independent fused trailering circuits mated to a 7-way sealed connector, wiring harness for after-market trailer brake controller (located in the instrument panel harness), integrated trailer brake controller and single wire for center high-mounted stop lamp Available Available Standard
Trailering wiring provisions, for camper, fifth wheel and gooseneck trailer, includes additional 8-way wiring harness routed to front of pickup box Available Available Available
**Maximum trailer ratings are calculated assuming standard equipped vehicle, driver, and required trailering equipment. The weight of option equipment, passengers, and cargo will reduce the maximum trailer weight your vehicle can tow. 10% to 15% of the trailer weight is the recommended trailer tongue load.

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* The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all GMC vehicles' destination freight charges.