8 3/4 axle shaft seals

My 67 maintenacne manual shows 2 shaft seals on each side, right and left, one inner and the outer. I have put the inner one in-is there a outer seal between the flang and the bearing. The bearings and cup are good. I have a late model 65-72 housing and a (741) 2.76. I hope taht I don't need to pull the bearings to replace a seal. Can all that knowledge out there help me. Thanks

Dave