We subsequently found a pair of drums that had a 3/4″ groove, like mine had. Just wondering if there had been some engineering on the fly to address a problem or did they have different hubs for longer wheelbase cars? I think the trumpets were off a ’33 EDL
The 1/2″ grooved hubs will require a substantial amount of modification to the puller.
When you think you have seen everything……Pierce Arrow builders throw another monkey wrench in the works. I will take a look around the shop to see if any of our drums are different.