vin plate should be on the drivers door post above the dogleg or lower on the wide area - might also be stamped on the frame top flange around the steering box, but that was just starting then, so might not be there
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics