Nice of people to let someone use jacks! Just one word of caution and I've used them before... those cable jacks can be a bit scary if you have to go high. I'd get 3 if you rent and I rented (like someone else posted) them from a tool rental place. Pretty cheap and I used them to get my Eagle on/off a Dakota it was ok. When I got my RAM, they did not work as the truck was too high and as I started to jack the camper up, it was starting to sway so I reversed course. I now have regular jacks that mount to the camper even though the camper stays on the truck full-time (just in case I ever have to take it off).