No idea, Lynn, but C81T is the part number for a 1938 Ford Commercial Truck, and this part number radiator was used in Trucks up to the 1941 model. The LP2 parts lists suggest that the same radiator (with "S" Suffix) was used in Carriers, but elsewhere on another thread we have read that Trucks/MCP used a different radiator to Carriers, so I dunno.
And as for the "L" prefix in LC81T, that's just pure mystery!
