i have a 80# traxxis on the back and saturday out on lake acworth i turned it on to help the 70# out in the high winds and it started making a lot of noise...sounded like bearings going bad...i've been having problems with it coming on when i hit the button but i was blaming it on the girlfriend putting her feet on the battery's :evil: now i'm thinking it was something besides her feet causing the problems...would it be cheaper to have it rebuilt or just buy a new one?