Ok, I've done a quick search of 4 or 5 "rear shock rebuilds" but can't seem to fine when or where to add the oil on a 1985 I. At this point all I care to do is replace the seal and replace the fluid.:sadguy:
:claps::bow:Hi Butch, it's been a long time. If you have the tool and inclination, this would be a good time to completely disassemble the shock and clean it up but if not, then, remove the dust boot and lock ring, use compressed air to blow the old seal out. I do this into a five gallon bucket to contain the mess that usually comes out with it. There may not be much oil left after all these year. Rinse out the inside with brake cleaner. Plug the air inlet port, turn the shock upside down and pour in the required amount of either ATF or the fork oil of your choice. install the new seal, lock ring and dust boot and you are ready to go.