Hi, Looking for some education on my paint code on my 1964 C10 fleetside longbed. The paint code is 510AA. Wondering what the AA indicates. The other question I have is on some of the paint literature it lists code 510 as either torguoise or torquoise poly. Are these two the same? I thought the paint was enamel? As you can tell, I know nothing about vehicle paint! Just trying to educate myself!