I just bought a used Starcraft camper. It's a small one for the compact pickups (10', 9") and it came with only 3 stabelizing jacks. Is there any reason why I can't add a fourth? It seems a little shaky with only 3.

I Have a 72' Amerigo with only 3 jacks and wonder the same thing. Why only three? I keep a close eye on the camper loading and unloading as I don't want the thing on top of me. I see no reason that you cannot add a jack. I am going to give it a whirl this spring. I thought about electric jacks but, I could have more tied up in the jacks than I have in the TC.
In y our case, the camper is probably not very heavy. Still, keep an eye on it when it is in the air. And find something like sawhorses to store it on.

Bob,
I finally got in touch with the manufacturer and they told me you can put 4 jacks on the small campers. The only reason for 3 jacks is cost. I also found out that Reico-Titan does sell 1 jack at a time.

I am mechanically inclined and think I can bolt on these items for a lot less $. I would like the tie downs that go to the chassis and not the bed. Do I want the HappiJacs or the Torklifts or something else? Can you recommenend air bags? Are the Lance Air-Lift bags with "Jounce Bumpers" proprietary to Lance? Should I wire it direct or use the 10" foot pigtail that allows you to use the trailer plug for the camper as well as tow a trailer? That would seem to be the cleaner way with less splicing of the wires.