The gauges were idiot lights.
BUT, it looks like the truck was being restored at one time. The black paint is flaking off the speedo face, but I took the cluster apart Sunday night, and the speedo gears/mechanism look like they were just installed by GM--no grime, dust, dirt, all shiney metal. The interior surfaces of the entire gauge panel are all perfect, brand-new metal. The numbers on the odometer are brand new and not faded a bit. The gas gauge looks perfectly new, too.
I'm sending the speedo out to AutoInstruments to have the needle and face repainted, then load it up into my Suburban.
I didn't know there was a full gauge package available in '63. I'd like to find that...as it is now, I'm figuring out a way to rework one of the clusters I've got, and fill it with water, oil and alternator gauges in place of the idiot lights.
-Brad