Chevy kept the same six lug pattern. The big thing you need to check is the back spacing. To check that lay a straightedge across the back of the wheel (not the tire) and measure to the mounting face. Check that to be sure the wheels and tires will clear fenders, tie rod ends and such.
The last few years they have made some changes with the center setup, and I am told the bolt pattern fits, but the aluminum wheels won't bolt up properly to the older trucks.
