got my shaft back from the machinist, i am still not happy with the tolerances both inside the gearbox and outside. The spur gear now can move up and down a bit, and i had to install a spacer to hold the b4 plate properly, and i need to extend the screwing side by 1mm. otherwise everything looks great and seems to work fine. a push test confirms the smoothness of the spur and pinion, it was noticably wayy quieter than the original mids spur and pinion mesh. will be testing the car this saturday.
Merry christmas everyone !
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