[J Knight]

If you used the original u-bolt plate, it doesn't have a relief hole in it for the leaf spring center bolt. Make sure you slightly off set the u-bolt plate so it isnt sitting on the leaf spring center bolt or you wont be able to get the rear end fully tightened. Another way to fix this is to drill an off set hole in the u-bolt plàte to match the off set in the flip bracket.