904 Transmission, no 3rd gear shift.

Always match frictions in direct drums. The odd one will wear out; even if it's stronger than the rest. What was the end play? Shoot for .020 to keep that direct drum from wobbling. Wobbling wears out the rings and eventually they will score the inside of the drum. Then it's junk. Are you measuring clearance from the inside of the top of the waved ring? If you presoak the clutches, it will throw off the reading. Air testing will squeeze out excess fluid and give a more accurate measurement.