new tongue jack installed!! Thanks everyone!
Hi, just a followup: I got a slightly shorter tongue jack from etrailer and we installed it tonight. It will give me almost an inch more clearance for swinging down the jack. I also bought the 1" highrise hitch ball which we will put on probably tomorrow. This will give me plenty of clearance, I shouldn't have to use the scissors jack anymore, and the camper should now ride level if my calculations are correct. The jack install was very simple, we just removed the snap ring from the old and new jacks, cleaned the rust off of the mounting plate, swapped the jacks, and reinstalled the snap ring. The only problem we had was that the snap ring tool was not quite large enough for the extra large snap ring on the jack, but my hubby figured it out somehow.