Jay in 29

I bought a set of 2014 Chevrolet wheels to put on my 2021 Sierra, I was sure all i had to do was replace the Chevrolet center caps! But the tire store guy tells me they don't fit because of the caliper. Original wheels and the 2014 replacements are both 17". Is there an easy fix for this, can anything be done so I can use the '14 wheels? Would a spacer work? And, if I have to buy different wheels, what other years of GMC/Chev wheels will work on my 2021. Any help appreciated. Jay 29 Palms, CA