I am having an issue, the car came out of a field, I am in the process of getting it running/moving. When I got the car home I noticed it would not go into park at all, so I figured I would diagnose it when I did the torque ball seal. So here is where I'm at, I pulled the torque ball and found a sheared pin in the trans housing, I am assuming it holds the park pin to the shift linkage. My question is, do I have to pull the trans to fix it? And where can I get parts for the 50' Dynaflow?
It has been a long time since I worked on a dynaflow, but I don't think you would have to pull it to replace the parking pawl components. Here is a link that maybe able to help you with parts, they were always the go to place for antique automatic transmission parts. http://www.fatsco.net/?gclid=CI_5l9fTy8YCFYI7aQodkdgCxQ
It is a little fussy, but I believe you can pull the extension housing in the car. The big issue is a small rod that controls the parking pawl. That is the difficult step.
Thank you for the advise, I will try to drop the tail housing with the tranny in it and see what happens, transmissions have always been my kryptonite and this is my first dynaflow.
While you're in there, try to determine if the ear is intact on the reverse band, as that was a common cause for these cars to get parked/scrapped.
ok, got it apart and cant tell what ear you are talking about, i looked at the manual and done some googling but still have no clue what i am looking for, there doesnt seem to be any other loose parts in the bottm of the case and the trans fluid was pretty clean considering its been sitting since 1974.
Might try posting your question on Buick Club.org site under "Post War". Lot's of good knowledge and advice from Buick owners.
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