I did all I could to get rid of axle wrap. I made the perches way longer than stock and geared it with 5:13's to turn the 37's.
I got rid of the factory block, and went with as much leaf spring as I could get, a full 6" lift spring instead of 4" plus block. I think I may just put a temporary goober on the front of the block and then drive it to see if it vibrates.
I've done some tube straightening with a torch and wet rag before but would like to eliminate any chance of warpage since I went through the trouble of building a jig to hold it true when I narrowed the axle.