Yes, well the SS/B-cars came with the offset kit already installed from Hurst...
So like I say, till one of the guys who actually raced one of these cars back them step in... May be by claiming ´72 is the year, I can provoke someone to do :)
I have lend a picture from the web. It is from ´72, showing what I thing looks like some more rubber underneath...
by the way, some impressive racing there, Locomotion...