Hey all, today was getting some of the finals for my truck togehter, and went to spin my fan so i could get to a wrench I dropped, I cant spin the fan. Well I can but it spins the pulley under the belt. The belt is slipping is the only reason I can turn it. Dont know if it roars at speed or not, but is this a bad clutch? Its off a 454 btw. Thanks.