first of all how do you tell if an axle is a 14bff or a 14bsf (total newb here) how much should it be to get one of these regeared? next, the main cylinder in my 350 is damaged and i'm eventually going to have to either rebuild or purchase another engine, what do you guys suggest? i'd love to put a 454 in it but i don't really know... help me out /forums/images/graemlins/1zhelp.gif