I'm pretty confident I have assembled the car right. I've had a few shaft drive cars in the past (including Yokomo SD and Kyosho Lazer ZX-5), and I have already had the drivetrain apart a couple of times to double check it.
After my mods to the centre gearbox and the shimming the car rolls very freely and silently with the pinion off. Before it hardly rolled (felt more like a belt-drive car on a tight setting) and crunched, particularly from the rear box. I'd be interested to know what yours does.
To be fair to the car it ran just fine at the meeting on Thursday night, a little crunchy at low speed, but I'd rather a free transmission than a tight one, should make for a faster, more efficient, more correct car.
I'll be adding a few more fine shims to it to get the mesh spot on without risk of stripping the gears (Yokomo shims are about 0.25mm thick, I've got some 0.1mm TOP ones coming).
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