If that's a fiberglass hood, they did a great job recreating the original metal hood. The parking light lenses have been changed on the hood. The 60-61 GMC hoods had clear lenses. Here's a picture of a GMC hood I sold a couple weeks ago.
Also,
here is a great thread that shows the grille and hood differences. The GMC and Chevy grilles were different.
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Christian Carpenter
1963 C10 -
Frankentruck 283, 3 speed with overdrive
Overdrive wiring here
1963-ish truck bed trailer -
Half-Wit
1981 C10 -
Penny 305, th350
1995 Dodge Dakota Sport
"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson