[charx2]

I'm also having a similiar problem only I'm installing a Step notch. I can't seem to get good measurments, left and right side of frame seem to differ by 1/4"-1". I'm trying to locate what's throwing mine off but have not had time. I suspect and hope it's because I don't have the truck completely level, which is maybe putting some flex in the frame. At least that what I hope my problem is...good luck though and I'll be watching this thread. Hopefully kill 2 birds with 1 stone in it!