A904 Valve body question

Im working on the valve body for the a904 from my 1985 Jeep Cherokee.

When I took it apart the detent ball and spring for the rooster comb were laying on the valve body. Also notice there is no pin in the hole behind the spring. See picture.

It's been a while since I've done this, but I'm guessing a roll pin goes in there. Nothing noted in the ATG manual I have for this transmission.

Any help is appreciated. Thanks.




View attachment 1716332352

There is no pin that goes in that hole.
It’s only there for venting behind the ball so it can move freely.