[Stripit]

Wingnut is correct, I always carried a 5 ton small short bottle jack. Had a piece of 2x10 wood as the jack base if I was on anything other than concrete or something rock solid. Mounting the jack to fit into the spring purch was all I ever needed, as your only lifting the trailer an inch or so off the ground at that one wheel. I kept the trailer hooked to the truck and blocked the other side wheels if I had the truck unhooked.