The Stovebolt Site Forums The Parking Lot Big Bolts Looking for drums / shoes for my 1964 bus

you need to size your drums. as in all the dimensions. Then find a large truck web site that has those dimensions and search.
Because "Marketed" to your specific year may not be out there BUT actually they exists. "Reproduced" can actually just be under another make and model even modern.
Some things are not reproduced but Drums and Pads and Calipers often show up under all kinds of years makes and models.
Now not saying the unicorn is out there but I would start there. I know some guys have had luck with smaller truck drums and 1 tons this way.
The internet has made finding unicorns much easier. (and harder sometimes the old paper catalogs had very good indexes/charts).

So give us the details. Year make and model and what those dimensions are and we can help you look.

Best of luck.