Yes, the rebuild was done by Mercury mechanics they said a tooth came off a lower splindle part that was not replaced in rebuid process. when this part went out it took rest of lower units new shaft and broke it. I am still in limbo on what the owner of the shop will do for me. I want to know my options and i trust any information Bass Cat wil tell me, part of the family, that means alot to me. Thanks Tom Zeidas