I have a 1971. Its a numbers matching car. Upon advice from a trusted friend/mechanic bought a 200R4 for two reasons. One, to eliminate the leak issue and Two to have overdrive in the car. Yes, I still have the original tranny. Long story short, I still have the leak issue and its worse than ever. Brought it to a new tranny guy and he said I need a part 8678940. Of course its discontinued. I have been dealing with the new leak issue for the past two years and I am at my wits end. I would really like to drive my car. Can anyone please help me?