Not quite the answer you are looking for Tom, but:
part number 1565634 was used on series 100 through 370 from 1939 through 1946
part number 1500997 was used on series 100 through 370 from 1947 through 1950
part number 1581636 (which replaced 1581063) was used on series 100 through 350 from 1951 through 1953
Any numbers on the back side?
Which of these were marked "fuel" and which are "gasoline" I have no idea. I think all the diesel models had totally different dashes.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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