Take our fullsize Cherokee that sits on 47-inch tires. It weighs under 7,000 pounds, yet the 10,000-pound winch that used to be on the front of it couldn't even pull it up a decent incline out of a canyon. In fact, we had to get two more 9,000-pound winches on the truck to get it up the hill. The problem is not that the truck is too heavy for the 10,000-pound winch (in a dead pull scenario); it's that the vehicle package presents too much resistance for it. Our fullsize Cherokee with stock tires probably would have been okay with the 10,000-pound winch, but the 47-inch Pit Bulls give a huge contact patch and can present a lot of resistance if they get hung up and are not being turned by engine power. The 20,000-pound Pierce winch on the front of the truck is much more suiting (plus now we can claim we have a 10-ton winch on the front).