Caster how to add some

[Ron Hayhurst]

It would be very helpful if someone on the Forum would add a note on acceptable hole sizes in the chassis bracket, radius arm ball pivot bushes and the arms of the radius rods. My understanding is that there should be a larger hole in the chassis bracket to allow for twisting. A waisted bolt is available from David Cochrane presumably with this in mind; although the picture in the parts list shows a plain shank on this item. Is there an original detailed drawing available in the recently catalogued archives?
Ron