Originally Posted by
Nexus
Welcome to the madness.
Now I have to get you using Speed Passion.
Mine was tight per instructions. I did a trial and error with shimming. After my first few packs it's all smoov.
I've built 3 of these and it has always been the same and In the rear I run 2 shims (0.1mm ea) on the pinion and no shims in the front pinion and mine was pretty smooth out of the box. That's without loosening diff cases and such like. After about 4-5 hrs on the car the gear mesh is still spot on and generally the transmission is a smooth as silk! Enjoy the car it's awesome.