727 experts? Need help

Yeah the trans can't be going into park because I can still push the car. Do I need to drop the pan and take the valve body back out? Worst part is I don't really know what to look for.

Pumping fluid- Yes the only thing that changed was converter. Maybe I'm not even in neutral so it's not pumping the fluid?

Thanks for your help.

Converter bolts in it? :D

Do whatever you have to do to verify that linkage.
Disconnect the linkage and verify it by shifting the trans by hand into each position.
There should be 6 positions PRND21.

The pump will pump fluid any time the engine is running.
(supposed to anyway)