Denny - the deluxe heater may have changed during the run of 47-54, but there are also standard and dealer installed versions, and those 3 variations for AD's are different than for Decos or TF's [at least 4 different for them] ... the 60-66 is the oldest core everyone carries, a common type [similar to the TF deluxe one], older than that there's obviously no market as far as mfgr's are concerned
I would be suprised if anyone could sell 1,000 deluxe AD heater cores in their lifetime, let alone a couple weeks .... check the gallery, how many AD's here? is every one of those owners going to want a new heater core? do even half of those trucks have the style of core you'd pick to repro? and the vendors aren't going to scoop dozens each to have sitting on the shelf, they'd just note the maker and get one when they had an order
things that are profitable to reproduce get done, and with the amount of rad stuff in the world, if it was an easy deal to do some AD heater core [which?], it'd be there ... I think Carter had some of the round cores for awhile, probably NOS someone found
Bill
