727 doesn't shift into second gear like it should

Ok. I pulled the valvebody today. Pulled it apart and made sure the check balls were all in the right position. Made sure the rod was still behind the shuttle valve and not a spring. I did remove 1 check ball as per the instructins. The one ball is the difference between heavy duty and street/strip. Dont know why I didnt pull that one back in the day. Put it all back together and adjusted the pressure regulator. Had to back it out about an 1/8" farther than it was according to the instructions. Tomorrow I will be making the rod to install behind the accumulator valve. Anything else I should look at before I put the valvebody back in?
I also remembered to check the rear band lever and it has 3.7 stamped on it.