having some issues with my 1994 850's front passenger side suspension - having just purchased the car I first noticed that the front tires have shown an unusual amount of wear characteristic of ball joint failure - the guy I bought it off of had the driver side ball joint replaced but there is still a lot of thumping noise from the passenger side when going over an uneven surface - upon inspection though the ball joint (and tie rod) appears to be fine and does not show excessive play when pryed - should I be looking at other parts of the suspension to correct this problem???