Chevy ran 60-61, then 62-66, because of the bubble nose hood. GMC ran 60-62, then 63-66, also because the bubble nose but if you can find a 60-62 GMC hood buy it, they are pretty rare- not many made and most where scrapped because of wrecks and couldn't find a replacment. But Chevy and GMC hoods will fit on to each other- all year 60-66.You just have to know what your looking at. Just for kicks go to 6066gmctrucks.org and you'll see the 60-62 gmc hood then look at the 63-66 and look at the difference. Jesse Hazell Chevy Duty Tech.
Thanks guys, have a 63 in shop that is rusted away on one side where rear brace joins hood side. Have access to 65 hood but didn't know. Our shop is real strong on 30's and 40's and doing a lot more 50's but 60's are still "late model" to us. Thanks again; Evan