Though at quick glance, the GMC grilles of these two years may seem the same, however, look close. Changes at the top show slight differences. The die cast assembly at the top of the 1937 grille gives the impression that the vertical grille bars extend through the emblem. They don't! It's an illusion and is die cast. The hood ornament above repeats the GMC letters. The 1938 doesn't have the upper die cast vertical bars. They even eliminated the GMC letters on the hood ornament. All these emblems are extremely rare. If they have the GMC letters they usually go in a hobbyist collection. If they don't have the GMC letters, most people don't know what they are once separated from the truck in a salvage yard and they go to the iron pile. 1936 grill 1 1936 Grille (above) 1937 grill2 1937-38 Grille Bars (above) 1938 grill 3 1938 Upper Grille Bar Housing (above)