Painted bumpers...

i just had a quick question for you guys. I want to get a some front and rear bumpers and a grille shell off a z71 tahoe to put on my silverado. I have seen them around but im not sure exactly what year they are. i know the body styles on the silverados and when they changed but not to sure about the tahoes. Anyone help me out? im just curious of what year models they paint the bumpers... thanks.