You should be fine with only a 2" suspension lift, I have over 4.5" of rear lift and as long as I can keep trans mounts in it, the ujoints handle it just fine, but within 8-10 hours of crawling the logging roads with a brand spanking new set of trans mounts, they are flopping all over the place. TT has their indestructable trans mounts available now, they are on the way!