A while back I asked about stub frame to body isolators and got some helpful tips. Since these rubber mounts/isolators are no longer available, I have decided to make my own. I have every measurement except for the size of the holes where the isolators bolt to the frame (the two side by side mounts at the dash foot of the stub frame). Just wondering if anyone knows what diameter these holes are or has access to a 70-73 stub frame and can measure it for me?
