BC3600 is right about the rust. I have never seen an AD without rust somewhere. I live in Southern Cal and it is here just like everywhere else; just not as bad.
The cab on restoration I did rears back was a 55.2. They are much better at being rust free than ADs.
The first AD I had in 1967 even had rust and it was less than 20 years old, and by far the worst one I have ever owned. Darn kids don't know anything about buying trucks. Hey, but at $165 it was good, drove it all over the place. I put a 283 in it after awhile and it was even a better truck.
