Chevy 8.2 ?'s

[phasemaster1]

Well come to find out my 67 GTO has a Chevy 8.2 rear in it. Looking for a 8.5 but if I cant find one this is going to go back in. The driver side axle seal has been leaking so tore it apart to change seal. Well the axle is pitted really bad so need a new one. The spider gears look horrible looks like some one has been in there already and didnt know what they were doing(hammer marks where pin goes in). My worries are with the main caps what happens if they if they didnt mark them and just put them in? Thanks