I believe there is a metal plate vulcanized into the rubber. The bolts screw Threw that plate into the bell housing on the side so I can’t double nut it.
It just seems strange to put a lock washer on the bolt that fastens against the rubber.... a flat washer maybe then the lock washer.... don’t know.....mmmmm

Any idea what size the bolts are that go into the frame?

Mike


1940 Chevy 1/2 Ton presently... Almost done
1940 Chevy Business Coupe... In pieces