Quicksilver has a 20-ton air over hydraulic jack and a 1" air impact gun that I can no longer manage. But the Mexican Green Angels grin when they learn I have those items plus a hydraulic (hand pump) for lowering and raising the spare under the bus. Somewhere I have a 15" square 1" thick piece of aluminum plate with berms for the jack and rail handles. All 3 axles have half inch angle 4330 chrome moly brackets welded on to fit the jack. But the owner has aged and deteriorated to the point where I cannot pick up the air gun or jack - a fine state of affairs :(