hasta I drove with 2 &1/2 of lift for 4years & didn't know how bad it was untill I got a pair of Rancho fixed lowers.I'd never do it again, but as they say ignorance is bliss. Now I'm at 3 & 1/2" & wish I'd bought adjustable arms in the first place. You don't really need them, just like you don't need your tires balanced but , your rig will sure drive a lot better with them. The wj arms aren't just a simple bolt in because of the bushings, so why bother? I was going to try a pair from a tj, they appear to be about 1/16 longer & they do bolt right in but I bought the Ranchos instead.