[clinebarger]

If any of the above air test fail, Let me know & I will help, Explaining all that would take pages.

Remove the Input Drum from the Reverse Input Drum/Front pump by pulling straight up with the Assembly is still upside down.

Place the Input Drum in a parts washer or Drain pan with the Input shaft pointing up, Fill the top cavity with Solvent, Plug the Bleed Orifice with your finger.
Pressurize the 3-4 Clutch feed hole between the 2 bottom sealing rings.

If there is a leak between the Input shaft & Input Drum.....Stop, You need a new Input Drum!!!

Check for 3-4 Check ball Capsule for leakage, Replace this Capsule 100%!!!