Question about fluid level in a Torqueflite

Little back story. was fighting a leak on a cable shifted 63 727 in a 63 Belvedere. Over the course of a week it would leave about 2-3 qts on the floor. It was coming from the park cable housing area. New seal gasket ect still leaked. It was basicly a combo of convertor drain back and weeping up the cable jacket crimp area. First thing was the Sonax pressure controll valve for the drain issue and then seal the cable with heat shrink with the sealer inside it. Did the valve first and it took care of 90% of the leak. Then the cable mod. Now no more leak. Those cables are hard to find and expensive if you do. No repops I know of so just NOS or Gamble on used.The Sonax valve addresses the drain issue and the lazy cold start put it in gear and wait or put in neutral to get the juices flowing. Other issues it take care of also. Go to their site for more info.Even my 92 Ram Cummins has the lazy engagement after a day or 2 but no leaks.