Brad, nice of you to respond w/ picture. I believe I got the three 5.5mm balls in the correct location & put the larger 6.3mm brown ball in the middle. I guess that pin did come out the transmission, not in there now, but running fine. Took 36 guarts to flush out milky fluid by return to radiator method. Of course put new radiator in. Are those pins just for locating plate as I didn't remember seeing any others? I followed JDS response below:

I'm looking at the 240 manual for the AW70 (TP30868/1). It shows four 5.5mm balls in the lower valve body.

Orient the lower cover with the short edge to the top, and where the dogleg cover attaches toward the top.

One ball drops into the square hole next to the middle of the three screw holes used to hold the upper edge of the dog-leg cover in place. Note that the ball can cover a gap in the right wall of that hole.

Now go to the left of that middle-screw hole and follow that short channel downward to its end. The second ball drops into the square hole on the other side of wall you just touched. The ball can cover a gap in the right wall of that hole.

Now go left and down slightly to a screw hole and beyond it to a rectangular hole that also has a gap in its left wall. That's the home for ball three, and ball four goes in a similar rectangular hole to the left of that one. The gap in that hole is in its right wall.

Hope that helps.

PS: I seem to remember that one of these balls wears down over time, and that results in delayed/abrupt upshifts. If that is true, this looks like a chance to replace that smaller ball with a new one.

jds