trans. problems on 1991 GMC S15 Jimmy

transmission pan was leaking,bought a new pan and seal, every thing I needed to replace it also bought new transmission filter but it still leaks and now it will not go into overdrive. Any advice would be helpfull.
Thank You. Eveie

Asked by for the 1991 GMC S15 Jimmy
1 answer
Did you find out where the leak was coming from?