Yeah, what he said. It seems to me you'd need 2" blocks to make the sides equal. Going thru all that trouble, you could have put in an add-a-leaf to raise the low side. I guess I just don't agree with the whole lowering thing.
Good luck man.
Not true, with a 3/8" shim you will solve a 3/4-1" difference fender to ground from each side. That was my difference when i added the 3/8" shim.
See this thread, i solve my lean with a 3/8" shim on the right side front and rear.
https://forum.ih8mud.com/40-55-series-tech/143300-ome-question.html