This is kind of funny a few years ago I put in the auto tensioner in my seeg and after harley put in two transmissions and my warranty was out I went to baker and told them what I had done to the bike and the problem and they told me to throw the auto tensioner away because I ride hard the tensioner would ratchet tighter and put a side load on the motor and tranny all the time when they told me this i looked at both old transmissions and found the same problem as what they said I would find the output shaft is in two pieces and has a needle bearing there it chewed this bearing up and then resulted in other failures so my advice is if possible throw that auto tensioner as far as possible. since then baker tranny installed 35000 miles and not a problem and of coarse the old harley tensioner .