'98 tours came with two types of control arm: horizontal bolt or vertical bolt. The obvious sign of wear is when you notice that the lower edge of the c/a almost contact the upper edge of the front chassis. There should be a gap between those parts. Check the other side and compare. In other words there should be an almost horizontal line perpendcular to the chassis, between the c/a and chassis.
Thats the visual way. The other is to use a pry bar between bushing and chassis and look for play. Again, compare this to the other side.
