For comparison, this is the same grille with a stock GMC emblem.
I know some folks that have done this type of swap on other vehicles just because they think the GMC is higher status ( like Mercedes badging on Dodge swap), which is really pretty silly, but for $10 you can also get the GMC center stickers for the wheels and at least match! The only place ours says anything Chevy is on the rear door behind the spare and the steering wheel, besises the grille and wheels.
Pete has found an elegant way around the identity crisis