My other thread is 7 pages and getting messy....
Help - stuck on road 722.3 no 3rd/4th gear

So just need this question answered and is the issue now:

Summary of prior thread:
a) output shaft gear + governor gear stripped due to my error not locking down axial support. Lost gears.
b) replaced gears, car upshifts now.
c) 722.320 300TE transmission.

BUT:

Parking pawl won't engage and there is a clicking noise at speed (I'm hoping the clicking is something to do with the pawl). Car just keeps rolling back endlessly.

What could I have missed or done wrong with putting the parking pawl back in the output housing? I'm lost here. I went back and forth scouring the manual for something I did not do and I see nothing. I just put it back in...along with the plastic orange oil feed line. Everything else went back in perfectly without issue

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2016 Monsoon Gray Audi Allroad - 21k
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2003 Gray Mercedes ML350 - 122k