I just put in a valvebody from dusty at htc transmission, drove it a block got on it and bam,, snapped the u joint and droped thedriveshaft off, any had this problem, what cauesed it, how do i fix it, there was a big spring w the kit that the stock valvebody didnt have we put it under some plastic peice on tranny does that have antthing to do w it ,,any ideas ???