[rheavn]

Russ & Richard you've got it right and a picture IS worth a thousand words--Photo #1 & 2. In my younger days I possibly, no probably, would have broken the fitting trying to get it off. As I get older I take the time to do more thinking. After a nights thought I came up with a few ways to attempt to break the swivel loose. The successful process was to loosen the swivel nut, which stretched the air line, about an 1/8th turn CCW. While holding the fitting nut I lightly tapped on the hose collar with a nylon hammer moving the hose back to its starting point. I continued this process an 1/8th turn at a time until the fitting swivel nut was finally loose-Photos 2. I then removed the air line.

I removed the four 1/2" nyloks from the top bolts and removed the two 1/2" bolts from the bottom mounting plate. I then compressed the air bag using a small pry bar. I could then remove it easily. The bag itself is in terrific condition--no checking, no creases.

The bad news is the paper identifying label that Firestone put on the top of the air bag has been obliterated with time. All I could read is W01-.....8..... There are some numbers on the bottom mounting plate that I hope identify the air bag.