Was at the dealer getting the subframe replaced under recall. They replaced subframe, new mounting kit w/bushings, new tie rods and drag link, new steering shock, new motor mounts, and new control arm bushings. Paid for parts but no labor so it was a pretty good deal, they even let me bring my own parts! Car does feel tighter but I still have a horrible shake at speeds above 60 and a clunk/clank in the steering column. Mechanic said the coupler in the steering box might need to be replaced, or the entire unit. Could the support bearing for the drive shaft cause a great deal of vibration if it's shot? I know the ball joints need to be replaced, could they cause the vibration?