1955 1st series 3100 pickup, always titled & registered in CA.
Frame #: DRF56432. Stamped on top of frame rail, passenger side, opposite the distributor. This is the number shown on the CA title as the "Vehicle ID Number."
The truck serial number stamped into the riveted plate on the forward side of driver's door jam: H55L001601.
The engine number stamped into the block pad at rear of distributor: 0014686F55X
I suspect, as discussed here, that recording / titling of VINs wasn't consistent in CA prior to 1955. The truck has always been titled and registered with the frame number.
An interesting sidenote is that when the frame number became hard to read through the grime and corrosion about 20 years ago, CA DMV issued a duplicate small-size aluminum plate stamped with the frame number. DMV riveted the plate to the truck's firewall, right there in the DMV parking lot.
So, the "VIN" of my '55 1st series is DRF56432, at least that's how DMV has always recorded it.
