Need some help...'91 w/60k miles. While doing a routine check on my wheel bearings/hubs, I noticed a slight knocking sound when I grabbed the right front wheel at 12 & 6 o'clock and did the "movement" test. The wheel had no play in it at all...Upon further inspection I discovered that the noise is actually coming from the tie rod. When I grab it and attempt to move it in an up/down motion, I hear a slight knocking sound which seems to emanate from the area under the boot portion of the rod. There is no measureable movement from the tie rod, just the sound. Steering is fine..no noises, bumps, wandering, etc. Any ideas?...Thanks.