I have a '98 minivan with 150k miles. Its had outer tie rods and hubs replaced in last two years because of worn parts. Currently there is no slop you can feel from attempting to move an unweighted wheel. A few years ago I replaced the struts and found the strut bearings to be absolutely find, so I reused them.
I have noticed a sort of chatter in the steering when turning in or out of a driveway. Nothing terrible, but it does not feel normal. I also have gradually noticed that the van has more "wander" than it used to - although it was just aligned in Feb '07. Tires are michelin, although close to replacment wear, have been rotated regularly.
A friend told me this sort of thing was likely caused by worn bushings on the control arm. I then was looking at a friend's Motor Age magazine (for professional mech's and tech's) and saw an advertisement for Dorman where they showed a variety of frequently replaced parts, such as wiper motors and window lifts....and lo and behold they had the control arm with bushings (saves time to by loaded arms) for the '97 through 2003(?) GM minivans. Clearly the bushings must wear out, or they wouldn't even bother to make the part.
What do y'all think? Have anyone replaced these arms and did it help steering?