I'm running 4" blocks in my rear suspension now *juk I know*. I need to correct pinion angle 6 degrees up but most shims of this size require bolting directly to the spring pack which will not work with blocks. So, I'm on a budget. I'm looking at having a local machinist mill the blocks for a 6 degree correction and drilling the pad nub of the block for a bolt. ~$60. Q: Anyone know who might make lift blocks with a correction already built in for a reasonable price?