Please excuse any "noob" questions but this is my first buggy after several Helicopters.
It's amazing how 2mm bolts into plastic or alloy just don't take well to that final "nip up". I have stripped or broken "several".
Do you tighten the diff bolt down firm (compress spring all the way) then back off 1/8 to 1/4 turn?
The tips seems to say something about breaking the bolt or stripping the nut.
Look forward to seeing some more setup sheets.
Jeff