Whats happening is that the leafs are rotating in respect to each other as you turn the wheel. I had the same problem. My best bet would be that your U-bolts on your leafs are not tight enough. I would not try to tighten up the clamp with heat. If tightening the u-bolts does not help...don't worry about it. The leafs are not going anywhere.
John......southern CA
84CJ7, 3"lift, 32"BFG, 4.10's, ARB Locker, Solid Axle's, Durabak
John......southern CA
84CJ7, 3"lift, 32"BFG, 4.10's, ARB Locker, Solid Axle's, Durabak