Thanks for posting that.
I like the fact that "COPO"s were applied to a GMC; COPO = Central Office Production Order; the only division to have a "central office" was....
....Chevrolet.
Some enthusiasts go ballastic when they hear people refer to a "COPO" Pontiac or "COPO" Oldsmobile. Apparently a COPO GMC is legit.
K