The only seals you should have would be front and rear output of tcase, input and output of trans. The rf1a just go to the parts house and tell them output seal of a 1983 4wd toyota pickup transfercase. The trans, if they can't find it just pull them and go to a bearing shop. Last option and most likely the best is call that number at the top right of this page and ask the guys at the shop to send you the parts.
