if you mean the magazine 'Classic Trucks', that's a long way from documentation, I'd bet you could find many other trucks and cars with rings that look the same, pictures of someones "restoration" don't mean much - factory documentation works, and as I said it's very unlikely those are Cameo-specific, maybe not even GM

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics