I was just wondering if the head lamps are the same on both the Chevy silverado and gmc sierra for model years 2007-2013 ?

I came across on craigslist, a guy selling a pair of aftermarket halo lights from his 2011 chevy silverado he traded in. So I know both trucks tail lamps are the same but I am not sure about the headlamps

 

It appears all Silverado headlights from 07-13 are the same and the 07-13 Sierra are the same but couldn't make a match between the two doing a google search.

 

THEY ARE DIFFERENT