There would have to be one coming into the radiator, and one coming out. Before you drain any fluid out of the pan, I would check to see which hose exits the radiator. It gets messy with clean fluid if you are finding this out after you fill the pan with new fluid.
I did my way a bit differently than Olympic as I pulled the wrong line.
You can do the following:
find out direction of flow of fluid near radiator by disconnecting the hoses and having someone start the car and shut it off.
Stop. Add the flushie stuff. (I didnt do that).
Let car run with hoses hooked up.
SHut off car and drop pan slowly and collect all the fluid that comes out into a container. Note, about 8 or 9 quarts will come out.
Replace that flat looking filter that you see....clean the pan out in your basement sink especially that round magnet.
Put it all back together.
Find out how much fluid came out of the car.....add that much back into the tranny plus one quart.
Subtract the amount that came out of the car from the total capacity of the tranny plus 1. there are like 12.5 quarts in the tranny plus the 1 quart of flushie stuff you added. So if 7 came out, then you have 6.5 left in the torque converter right?
Pull the "OUT" hose off the radiator (you will have that hose off the radiator and if you started the car, dirty fluid would come out of the radiator if you started the car (Make sense?) Put a spare piece of hose on this end of the radiator and put it in a dirty bucket. Take the hose that you disconnected and put it in a clean bucket (really clean as you are going to add your fluid to this bucket). Take the ammount of fluid that you drained out of the pan and add that many quarts to the clean bucket and put your intake hose (the one you took off the radiator) into the bottom of the bucket.
Now for the math part. Rememeber the number you got from the equation above? thats how much fluid you are going to drain out of the car thru that hose into the dirty bucket (mark the level in the dirty bucket so you know when that much has gone in....I do one extra quart just to make sure. When that much fluid goes into the dirty bucket, shut off the car and reconnect all the lines. start car and check your level of fluid with the car running in park. Top off if needed.
It sounds like alot, but I did it by myself after olympic gave me the same instructions. If you dont want to do the clean bucket part, you could add the ammount of fluid you drained out of the pan into the tranny thru the fill tube then start the car, its the same diff, only you will have a bit of dirty fluid from the lines moving thru the system.
Dont worry, its not hard, just note, it took me alot of time since it was the first time I ever did it and I made a mess. Go get Mobil 1 synthetic, or even royal purple if you like.
Oh....one more thing: consider buying an after market air cooler to replace the radiator. IMPORTANT REASON: if you over heat the car, the tranny fluid is moving thru a hot radiator......what will that do to your fluid and your tranny? Yup.....smoke the tranny too as well as whatever damage you do to your engine.