Apparently I typed to slow?The only thing I can see being an issue is the fork wearing into the collar quickly. And after a ton of time causing it not to move the gear far enough into place causing a pop out condition.

You probably missed the reverse gear with the fork. Have to restab it.So I should be able to spin the shaft by hand in all gears? Because the output is spinning even when in neutral . And I can’t turn the shaft while it’s in any gears.
Sounds good now!Alright. Now it spins easy in 1st, 2nd and stiffens up but still spins in 3rd, even stiffer but spins in 4th. Spins opposite in reverse feels about the same as 1st. Still moves the out put shaft in neutral but I think that’s just because it’s not spinning fast.