Ken, I found the answer. I went on E-bay and picked up a repop one. Tried putting it in and it didn't work any better than my original. Pulled the original apart again while I sent the repop back. Got the original working again while the repop vendor said "works fine for me"...probably without ever testing it in a "real" car hence the positioning problem might be the cause. Anyway, my original is continuing to work fine. Maybe a small set screw could be placed in the slider to make up the worn plastic deficiency? If anybody wants a questionable repop, I have one on hand for cheap! Or maybe that is the incentive my old one needed to work?
