spraying tranny fluid all over road and exhaust

[new2bmw]

i have an 84 318i and drove it home today and was followed by a thin trail of tranny fluid. i looked under car and it looks like a small leak under the rad that was under pressure and spraying tranny fluid all over the exhaust and road. is there a drain plug in the oil cooling unit under the rad ? i cant get to it yet so i cant see but i am wondering where it may be leaking from?
ty

[viali8]

I am assuming it is an automatic. If so there are hard lines that run from the tranny to the radiator for the automatic transmission fluid to be cooled. check the lines.

[new2bmw]

hard lines.

sounds good, so there is no drian plug or anything in these lines? i was hoping it was just a plug leak. if it is a line, how hard is replacement of these?