First you have to find an EXPERT ALIGNMENT man with his head
OUT of his factory Specs. ass. I went MAX with mine and had to align it my self. Took a lot of trips under my truck but got it perfect and it worked great. Don't worry about caster, mine ended up with ZERO caster and was the best handleing it had ever been off road and Hiway. The main thing to remember is what works best for YOU. You are the driver no one else.
'02ZR5 YellowCruzCab-Airbox chopped,Quadlights,Intake defuser chopped,Precat chopped,HD Bilsteins, 8x15x3 3/4"back space alloys,30x9.50R15 Hankook Dynapro ATM RF10's, Gutted Main Cat, ZQ8 rear Sway Bar, Full size Bump Stops: solid front, hollow rear, Front & Rear wheel wells and ZR5 flares SKIDZ cut, 1.5" Daystar Lift Shackles, TB's cranked 1.5"