yes it is an 85 and yes i mean the rear seal of the transmission where the driveshaft mates to the trans.
good to know, I noticed the seal on the one i picked up said 1981 on it perhaps the girl behind the counter thought i said 81....
I did fill it myself. I added enough to fill the case so i could feel a bit of fluid from the fill plug location. I opened the top plug and i cannot feel any oil in it... perhaps I just added a bit too much and there was no where else for it to go?