so i'm in the middle of my suspension build up and need some advice.This is what i got. 6" tc front springs,ORD HD front shackles,2" tc rear springs with 4" ORD shackle flip, ORD crossover steering,ORD greasable bushings, bolt in steering brace,T-case mounts,body mounts,1" body lift , ford upper shock mounts, bilstein 5125 14" travel shocks. 1977 k10 350/465/205/d44 8lug/14b ff. Anyway this is my question?HAS anybody done the same upgrades if what shims did u use? I don't want to put it altogether just to have to pull it back apart to add shims to spring pack.Should i lower t-case crossmember?