[nberga]

I've got a small problem.

The pinion on the transmission wonders around and does not get in place, i'm guessing the motor shaft is not long enough to hold it secure in place like the RX-42.
Any ideias?
This V12/4 have a smaller shaft? Is there one with a longer shaft?

Or what did i do wrong?

cheers

I believe its quite common for the shaft on a the RK series SCX motors to be longer than the slot.it motors. The easy fix (and technically better way) is to use axle stoppers to stop the axle from sliding and set the gear mesh. Like these: Sloting Plus Superfine Brass Stoppers 3/32 (SP061190) (pendleslotracing.co.uk)

You're a life saver, thank you.