Depends on how much storage room you have. I pack a 3ton floor jack with an easily removable handle and a home made ramp thats about 8 inches high on one end. (Plywood base with 2x6's bolted and/or screwed to it). With a flat on the truck or trailer I drive or pull the flat tyre onto the ramp. Then slide the jack under, jack it up, remove the ramp, and change the tyre