I have been troubled by the supposed axle wrap issue. I was very skeptical that the thump/clunk issue was related to the leaf springs. I was certain that it was related to the transmission or slack in the drivetrain.
Well today I took C-clamps and clamped the leaf springs to the overload about 4-5 inches infront of and behind the axle and took it for a drive. Guess what??? The thump/clunk was DRASTICALY reduced. This proves that my "thump/clunk" is directly related to axle wrap. BTW, it rode pretty bad like this.
What is weird is that some trucks have this issue and some don't. I wonder if Toyota has different plants that make thier leaf springs.
I don't want to raise my truck. It looks like either new (stock hight) springs or traction bars for me....eventually. I have been leaning toward making my own traction links. I was wonding about a single link on the driver side that is mounted to the forward leaf spring mount and a mount welded onto the axle.