Challenger Lifts 44AK30 Internal Air Line KitSo, if you are purchasing a Challenger four post lift, wether it's an alignment rack or just a standard drive on lift, you may also be getting a rolling air bridge jack (or two) so you can gain access to the wheels for brake and tire repairs. If you get only one rolling jack, you won't need this kit. If you get two rolling jacks, you still don't need it, but you may want it. You see, these rolling jacks operate off of shop air, and many folks will