What is the smallest sized winch would you use for pulling cars on a trailer? I know, use a winch bigger than I expect to need, but I don't want to spend a small fortune on something I use maybe 2-3 a year. I have a 20ft tilt bed trailer and I tent to haul non running, but rolling, cars on the trailer. I am currently using a chain hoist but I'm getting older and the desire to continuing using the chain hoist is starting to wane. Harbor Freight has a 2000 lb winch on sale this weekend for $50, I'm thinking this is too small.