Got this from a chevy dealer site -
https://www.graffchevydurand.com/blo...rado-hd-616240
5th WHEEL/GOOSENECK
Silverado 2500HD - Regular Cab: 17,400 pounds (gas); 18,600 pounds (diesel). Double Cab: 17,000 pounds (gas); 18,200 pounds (diesel). Crew Cab: 16,900 pounds (gas); 18,500 pounds (diesel).
And this is where you see the other towing -
CONVENTIONAL TOWING
Silverado 2500HD - Regular Cab (gas/diesel): 14,500 pounds. Double Cab (gas/diesel): 14,500 pounds. Crew Cab: 14,500 pounds (gas); 18,500 pounds (diesel).