904 Transmission Stopped Going Into Gear

I took everything apart and took a picture at every step, let me know if anything looks wrong.

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Both rings and one thrust washer on back of pump. Rings are both locked and everything looks fine. Pump slides into direct drum smoothly.

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Thrust washer in forward drum.

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View once forward drums are removed. Original shaft thrust washer is held in place with grease.

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Removing front planet assembly. Thrust washer greased in place.

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Removing shell. There is a steel ring on back of shell. The rear planet thrust washer is held in place with grease.

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Looking into rear ring/reverse drum.

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Rear ring removed.

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Extension housing is attached to case, this is a pic of the output shaft bearing retaining ring. It looks fully seated in the groove which is biased towards the front of the transmission.

When I install everything (with no frictions, forward band, or pump o-ring), the input shaft spins freely and has some endplay until I start to snug the pump bolts . If I get the pump bolts snug or tight, the input shaft is not free to turn by hand and there is no endplay....

Does anyone see anything missing/wrong so far?