I have a 65 chevy impala with a powerglide transmission. some years ago I had it rebuilt by a shop. This was in 1993. I drove the car on occasion. Most of the time its in the garage. For some time for no reason it leaks transmission fluid all ove the floor. I changed the pan gasket and a couple of months later a puddle on the floor. The shop claimed they rebuilt it and charged 150.00. 9 months later went back to the shop. He was out of business. So maybe he did nothing. By the way, I had it rebuilt because it would leak for no reason not from the pan. The transmission worked fine. So I never fixed the problem. I have two questions: Please give me ideas as to where it may be leaking? 2. I have to put fluid in this transmission. What brand and type should I use? Any suggestions would be appreciated. Thank You!