The body puller is used to get the cylinder out of the ignition. If you go rent the original Gone in 60 Seconds. It'll explain everything lol. Me and my dad were watching it a week or so ago and he's like "Wow I never noticed before but this is like showing you how to steal an old car" Also did you know if you get pulled over you can be busted for having a dent puller in your car? Anything that can be considered a "Tool of the Trade". Slim Jims, Dent Pullers, Key guns, Lock Poppers, Wire Strippers, even a hammer. Some cars you used to be able to hit a hammer right under the ignition and then reach under and pull the rod you just broke and it would start.