I have read the info from the 56 shop manual , but it shows the rear bearing in the brake drum as an assembly, my rear drums come right off and do not have the hub connected to them. is it all the same other than hub in the drum? Do you need a slide hammer style seal/bearing puller to get the seal out or can you use a regular seal puller like you use to remove the grease seal from a disc brake rotor? I have a 59 rear is there a difference between 56 and 59?