Ah, so that explains the extra bracing that someone in the deep past welded onto that spot on my car. Apparently Max Mckay insisted that this be done to 23's when they went in for a service. If the owner didn't want to they were told to find another garage.
Shane would be referring to the arm mounts. With age, and, cars that have been driven with flat or low sphere pressure the tube mounts can develop cracks. Engine out to remedy. . .
Cheers
Chris