Putting a 904 Valve Body into a 727: Mopar A727 Rebuild #9

A beat-up valve body separator plate in the 727 had me looking for alternatives. I had a spare A904 in the garage so I pulled and modified the valve body from it.

[@rodneybyrd9516]

Beat up hole is the relief checkball hole. The TF2 kit from TransGo comes with revised springs for the different types, color coded. I file/sand the surface flat again and then use the checkball itself and a hammer to reshape the hole to seal again.

[@BismarckTheDog]

Hi. I've heard the 904 and 727 push button valve bodies and plates are exact the same. Do you know if that's true?

[@YoshimoshiGarage]

I don't know.

[@lindsaythomas2283]

How did the tranny work for ya after installation ? Good, I hope. Cheers

[@stevea6722]

Sonnax Valve Body Separator Plate
Part No. 22747-86

[@damnimcooltom1]

Are the three unused threaded holes for mounting the filter?

[@YoshimoshiGarage]

They are. It wasn't obvious until I was putting the filter on.

[@Directconnection05]

I opened mine up and the spring and ball bearing weren’t in there…

[@coperacingtrans]

I can get you as many separator plates as you need.

[@YoshimoshiGarage]

That would have been great to know at the time, plus you're an easy drive from me!

[@brettpowter6010]

Was the 904 and the 727 both lock up converter style trans

[@YoshimoshiGarage]

Neither one was a lock up