Jack I may be mistaken but I think it might be easier to take the final off and the bottom plate because when you bring the axle out the bull gear is going to drop and theres some spacers with it. Been awhile I don't remember which side they are on but with the bottom pan off you can see as you bring it out. Couldn't swear to it but there probably were pressed in but you can take a piece of brass or a block of wood and knock them out also watch the gear and put it back the same way it came out. Never done one on a B but I'd say there pretty much close to a 100 or super a. Sorry I'm no more help than this but like I said its been awhile.