real common tow truck winch is the ramsey 8000 or 12000 worm drive they look like this [Linked Image]

You can tell a worm winch right away because they don't sit flat they bolt on the front and back usually into a cradle because of the worm gear on the bottom side. Worm drive winches are far more powerfull than regular planetary types, as in a 8000 worm is going to have more grunt than a 12000 planetary and can be used all day everyday. Worm winches are the king of winches for sure.

1999 Montero SAS'd on Kings and stuff

1998 Montero trying to get a V8 Swapped