2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 440

Vehicle 3500 Series 4WD Extended Cab (e) 6.0L V8 (Single Rear Wheels) 6.0L V8 (Dual Rear Wheels) 3500 Series 4WD Crew Cab (e) 6.0L V8 (Single Rear Wheels) 6.0L V8 (Dual Rear Wheels) Axle Ratio 3.73 4.10 3.73 4.10 3.73 4.10 3.73 4.10 Maximum Trailer Weight 9,600 lbs (4 355 kg) 12,100 lbs (5 489 kg) 9,200 lbs (4 173 kg) 11,700 lbs (5 307 kg) 9,400 lbs (4 264 kg) 11,900 lbs (5 398 kg) 9,100 lbs (4 128 kg) 11,600 lbs (5 262 kg) GCWR (a) 16,000 lbs (7 257 kg) 18,500 lbs (8 391 kg) 16,000 lbs (7 257 kg) 18,500 lbs (8 391 kg) 16,000 lbs (7 257 kg) 18,500 lbs (8 391 kg) 16,000 lbs (7 257 kg) 18,500 lbs (8 391 kg) (a) The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for the vehicle should not be exceeded. (b) Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 1,500 lbs (680 kg) maximum. (c) This model is neither designed nor intended to tow fifth-wheel or gooseneck trailers. (d) Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,000 lbs (1 361 kg) maximum. (e) Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,500 lbs (1 587 kg) maximum. Ask your dealer for trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices on page 8‑6 for more information. 5-64