I don't know the proper way George but it seems you could work the rubber, with the cardboard, into the opening better than fighting the carboard to get it into the rubber.

But, I bet I'm wrong. Lets see what the pro's say !!!!!


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile