1999 Toyota Tercel Q&A

1999 Toyota Tercel Question: trying to add gear oil to a 1999 toyota tercel

hi we just recently had the transmisssion repaired in my 99 toyota tercel... we were told that we should add some gear oil to the car... and i have no idea where i add it, could someone help me with directions on where to put it and how to get there and such? -
Answer 1
Filler plug is a 22mm plug about half way up on the transmission housing at the radiator side of the transmission. -