I love my Kartboy shifter and bushings, myself. =) Works great, but Tom, if you're still poking your head around here, or anyone who has installed it; I have one of the older shift knobs, and I can't for the life of me get the stupid rubber ring to fit under the snap ring at all! There's just plain not enough room... I've tried four or five times now, to no avail, and have used really good snap ring pliers and everything... Sorry for the threadjack, but was just kinda curious if a) the rubber ring mattered and b) how to get it to fit, either way?