Conrad, I haven't had the SC on that long but I was being stupid and I raced my wife in her tricked out BMW, I wanted to show her what the beast could do, anyway I was going about 10mph when I punched it, the SC kicked in full bore and thats when it happened

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I was being stupid so it was more driver error than mechanical failure. I just hope I don't have an issue with the warranty coverage.
I too trailer a large boat, a 25ft wakeboard boat, and I wanted to upgrade the tranny so now I have my chance.