I have replaced, Shocks, everything from the steering box to wheels including the steering box. I have welded the factory steering shaft slip joint until I get my new one in, Track Bar 3 times. I get a continuos suspension knock or clunk/rattle sound below my feet when hitting little bumps and seams in the road. If I hit the brakes hard it is like someone takes a hammer and taps on the frame below my feet. I am going to replace upper control arm bushings tonight. any ideas.