Fellas I need some help. I've looked all over this site and can't find an answer. Just put maxtrac shackles on my 14 sierra AT. Took about an hour. Dropped hitch and gently persuaded bed seams like everybody does. Installed new shackles. Dropped it off the lift and tightened like Maxtrac says to do. Here's the issue. RR is 1" higher than the LR. So rear end is actually crooked. I had maybe .150 of the "Chevy lean" before I started. I've checked and double checked everything. Loosened and re torqued everything. Check shackles to make sure they were the same also. Clearly I did somethin wrong. Need some help figurin out what!! Sorry if I'm missing a post about this somewhere else. Thanks for the help guys.