1964 electra trans

[diesel]

how hard is it to change the seals on the front and back of the trans ? its a 400 trans all stock from the factory , have a small leak , I put half a cort of trans fluid in a year .I know the car has a carrier bearing in the center of the car .. do I have to pull the drive shaft off ,then the carrier bearing out , then the trans? any info from the buick gods . thanks

 

[Buickguru]

Other than it being an all day job it does not require any special tools or knowledge.