The area where you would be drilling to take those bolts is probably the most highly stressed part of the swinging arm, so I would not be too keen on doing it. However if you do drill it I would at least put a backing plate under the nuts to spread the load to the sides and prevent crushing the top face of the swinging arm.
An alternative way would be to make up top and bottom square shaped plates that span the width of the arm with two bolts on each side. Not pretty but it would avoid drilling the arm and spread the load.
Forgot to add, every credit for managing to stay on board and also avoiding impact :eek
An alternative way would be to make up top and bottom square shaped plates that span the width of the arm with two bolts on each side. Not pretty but it would avoid drilling the arm and spread the load.
Forgot to add, every credit for managing to stay on board and also avoiding impact :eek