[yabx172]

Originally Posted by madriz

how about these adaptable caster bushings?

the idea is to be able to put the F80 arms and not rub.

https://powerflex.es/es/f32-f33-f36-...le-avance.html

Be careful, because F80 and F30 arm do not have the same thickness.
If you have F80 arm, with F80 polybushes, you certainly need some washers to fit.