Originally Posted by B300 VanDanage
Originally Posted by Transman
If there is just one hole above that ball, in the separator plate then you will have no manual low or reverse.
Two holes in the plate and the check ball slows reverse and manual low application.


Mine has the one hole...
So that ball will stop the flow through that hole? Is it suppose to be there? I don't understand...
So because it's there I didn't have flow preventing reverse and low from working?
Is this the reason I didn't have reverse? Also the reason why the manual says that 727 transmissions don't use them?


That would stop reverse from working, I think they did that that because reverse was so harsh from higher pressure and breaking rear bands. I would leave it out, without knowing if that valve body is original, or has its original separator plate and years of castings and being a single hole vs 2 hole plate as mentioned earlier.