here's a guy that sells stickers:
http://www.webxtremes.com/chevycentercapdecals.htm
Note, there is also a guy that sells them on the for sale section of this site.
I have original metal ones that are pretty pitted, bought a cheapie set of plastic replacements for driving duty and have to be honest, I love em. They look EXACTLY like the metal ones, they fit tight, and if someone steals em, I won't lose any sleep.
http://www.ebay.com/itm/CHEVY-GMC-4X...sories&vxp=mtr
One tip - regardless of the route you go, CALL the seller on the phone first - there are "copyright infringement" "issues" with the yellow, correct looking stickers (that's why they are so hard to find, kinda pisses me of that the General is hosing us this way - they're old, let them be copied for Pete's sake...) - so they don't normally advertise them (that's why you see red ones and blue ones, etc) - but that does not mean they don't have any in the back room
