I believe from your description that you need to put some supports in (4, 2 front/2 rear) to hold the roof off of the camper. I used cheap 2x3's from Lowes Depot. you may have to cut them to get the lengths to match up...on my Rockwood the front and rear are not the same height. Rest them on the ground and allow yourself plenty of room to work...in other words...longer rather than shorter. Mine are all over 6 feet long.