Rebuilt 727 slow to no engage

I've never checked trans pressures. But you didn't even check the converter valve did you. Are you sure it's full running in neutral and checking both sides of the stick after wiping it off?

Nope haven’t taken it apart. I’ve been working and driving Mopars since the 70s. You have already asked about the fluid 2x. Same answer not low. I’ve rebuilt AT before and it looks like I’ll be tearing this one down too. Was hopeful for a quick fix but, if you want it done right then you have to do it yourself.