Originally Posted by CrazyTed
Towed our 2008 CrossRoads Cross Terrain 38 foot toy hauler with two slides all over the east coast with our 2005 Chevy Duramax 2500 HD single rear wheel. Not sure how it is now but at that time, the dual wheel trucks had a little over 100 less pound rating on the rear axles due to having all the extra stuff that comes along with having dual wheels. Our truck was actually rated just slightly higher than the dual wheel truck of the same configuration. We just traded that trailer in two weeks ago. Truck towed that trailer no problem. That truck was also my daily driver. Truck and trailer where weighed and up until the close to the time we stopped using it, we were within weight. Towards the end, my trackside business grew quick and we started carrying more stuff that was adding more weight. Trailer was 17,400 pounds fully loaded.
I'm sure you know at 17,400 you were overloaded. I did a quick search brought up these spec for 2005 GM trucks.
Impressive and tough:
With impressive power, tough frames, advanced suspensions and high-capacity brakes, the 2500HD/3500 Series pickups provide outstanding payload capacities as well as outstanding hauling and towing capabilities. The 2500HD models have a GVWR as much as 9,200 pounds (4,173 kg), and payloads up to 3,964 pounds (1,798 kg). The 3500 models have a GVWR up to 11,400 pounds (5,171 kg) and payloads up to 5,753 pounds (2,610 kg). "
"3500 with Duramax 6.6L TD
12,000 / 5,443 with ball hitch and 3.73 axle 16,700 / 7575 with 5th wheel or gooseneck hitch and 3.73 axle
16700 for the dually.....the single wheel is less. As mentioned above most loaded 40ft toyhaulers will exceed the "LEGAL" limits of most 2500 single wheel trucks. Just want to make this clear to the OP.