i have a 1975 chevy blazer 6" suspension lift, 3 " body lift, 38.5x16.6x15.5 super swampers, full roll cage, tbi motor, 14 bolt in the rear and dana 44 in the front. when i drive on the highway i expect to have vibrations, but i seem to get alot of body flex. I can watch the windshield to roll cage gap get bigger and smaller. I can also see the top of the door seperate slightly from the back of the body. also when the truck is sitting the door gaps are weird, the exact opposite of what bad hinges look like. my rockers are not in great shape and my rear fenders are shot but the rest of the truck is perfect and solid. could it just be the rockers, is this normal, or do i have a bigger problem. by the way it doesn't seem to make much of a difference if the top is on or not.