jebmccall

alright im running roughly 5 inchs of lift, with a rustys 1 drop crossmember. i had been running this setup for a while with no vibes on either driveshaft. i had to pull the engine and trans a couple months ago and never bothered to hook the front shaft back up. i recently got some adjustable bds uppers, and adustable rubicon lowers. i set the to rough country's suggested length for running drop brackets. i put my driveshaft back in and it vibrates badly. i take it to an alignment shop ive been going to yrs to get my caaster checked and its 0 degrees on both sides.

which way do i need to adjust the arms, and is their away for me to get a good measurement on my caster with out going to the alignment shop?

if i remember correctly my caster should be 7.0 degrees positive.