727 reaction shaft support question

[crusty 66]

Hello everybody,

I am currently working on rebuilding my first 727 transmission for my 1966 Coronet and came across a head scratcher.

It’s a 1972 transmission and while cleaning parts I found one of the ports on the reaction shaft support appears to deadened. Tried blowing air through and seem to go nowhere. The other three ports are clear and air comes out all the holes I can see inside the support.

I was wondering if it was part of an older casting that was not needed in use in 1972.

 

[493 Mike]

Hello everybody,

I am currently working on rebuilding my first 727 transmission for my 1966 Coronet and came across a head scratcher.

It’s a 1972 transmission and while cleaning parts I found one of the ports on the reaction shaft support appears to deadened. Tried blowing air through and seem to go nowhere. The other three ports are clear and air comes out all the holes I can see inside the support.

I was wondering if it was part of an older casting that was not needed in use in 1972.

A picture is worth a thousand words!
Mike

 

[crusty 66]

I know Mopar used the casting for multiple year, could have possibly been necessary in a previous version.

 

[crusty 66]

Turns out the reaction shaft rotated in the housing.
Has anyone had experience with this, should I just do a factory replacement or is there a better mousetrap out there?

 

[493 Mike]

Turns out the reaction shaft rotated in the housing.
Has anyone had experience with this, should I just do a factory replacement or is there a better mousetrap out there?

Just get a used replacement and carry on.
Mike

 

[crusty 66]

I was looking at Cope Racing or A&A transmission, anyone had experience with their reconditioned reaction shaft supports?