have pa title for studebaker truck title has no year just vin#r557801 need year

This a model R5, which identifies it as a 1/2 ton pickup. Hopefully the ser ial number on the title is the same as you find on the plate screwed to the step riser inside the driver's door. The serial number puts it in the 1951 model year. If you need to prove this to anyone, I can send you a scan of the official licensing information from that year.