transmission leak on 85' grand national

[b-turbo]

Ive been struggling with a transmission leak on my 85 grand national.

i took it to a shop and all they did was balance my drive-shaft and put in the transmission bushings.

it stops the leak for a couple of days, then it starts leaking again.

has anyone ran into this problem or have an idea on what it might be, i just dont want to go to a shop and they tell me its the bushings because thats the 2nd time ive changed them.
its leaking right where the drive shaft connects to the transmission.

thanks,

 

[TexasT]

Did they put a new rear seal in? Where the seal rides on the yoke, is it pitted, rusted or otherwise not nice and polished?

The rear out put on a 200-4r is very loose appearing but once the yoke n drive shaft is in all should be well.

 

[b-turbo]

i will look into that tomorrow.
thanks for the advise.