Need help finding a drum

[drembo]

I have a '65 2500 panel. I am having a hard time finding a replacement drum for the rear. They are 13" brakes like a dually would have:
http://www.rockauto.com/catalog/moreinfo.php?pk=1610532&cc=1440778
However, I don't have dual rear wheels, and my drum is only 5.18" deep. The only drums I can find are for 12" brakes, or the bigger drum like I need, but for dually. It's hard to tell, but I think the numbers on the drum read L651 H 48716. Can anyone help me here?

[FetchMeAPepsi]

Call this old guy. He's grouchy as a wet badger but he knows his stuff and he has lots of stock.

Tom Myers
918-542-3871

[drembo]

BINGO, I found a NOS drum at LCB auto and truck parts: https://www.facebook.com/permalink.php?id=157034577693723&story_fbid=351226128274566 $90 plus shipping. They had it listed as being for a 3500 but the size seemed right so I called and all the dimensions are correct. They have a couple more. Part # is Dayton # D8039.