a long time ago, i took the balls and washers out of the ball diff, jb.welded the thing together and tightened it up real good to make my own spool. it worked ok.

You can always try these

https://www.tamiyausa.com/shop/optio...x3mm-bushings/

It's a massive long shot but does anyone have the setup sheet from the 2005 IIC in Vegas from Marc Rheinard. He won the foam class with his TRF415 and a 4mm chassis and I wanted that setup. Sadly its disappeared a long time ago from the Tamiya USA website.

I believe this is it.
https://site.petitrc.com/reglages/ta...nard210905.pdf

Thank you, thats the rubber tyre setup for the regular MSX not the 4mm chassis one.

Wasn't sure, thought it could be what you were looking for since it was dated for the 2005 IIC race
https://site.petitrc.com/reglages/ta...miyaTRF415.htm

Here

Here you are.

Thank you.