Welcome Letmeaddem! I too am battling a random clunk at slow speed & a slight vibration at 55mph on a 1983 4wd. Slowly replacing everything (that showed wear or noise). Changed: steering box, pitman arm, idler arm, upper & lower ball joints, right wheel bearings, left outer tie rod, upper control arm bushings, sway bar. Still no change. Will continue to throw money at it & change lower control arm bushings, inner tie rods, right outer tie rod, & left wheel bearing. Changing/rotating wheels has made no difference....3 alignments....no strange wear on tires. I will win!