Changing the length of the leaf spring mounting distance, when the suspension cycles, can bind up the tight OEM rubber torsion shackle bushing. Our slippery grease-able pivots remove that bind, and removing every bit of bind in the system counts!
*If using the 1/2" lowering position, the leaf spring might touch the bed cross-support sheet metal when the suspension cycles. This causes no issues, and is undetectable when driving.
If you are thinking about getting em. Do it.. grease the shackles. Then grease em again. Awesome customer service if you have questions. I use em off-road and truck changed for the better.
J
Jason Baehm
Thuren Shackles
Installed these along with springs, bushing are nice upgrade over factory, I also used the lowest position to keep height of new springs in check