getting rims off a 06 c6 and need to know where i can get the spacers or adapters to get them to fit

Ebay is probably the easiest place to find them. When I bought mine there were around $75 for two of them. You'll need 2" ones.

I bought mine on EBAY $150 "free chiping"


SPECIFICATIONS BILLET ALUMINUM WHEEL ADAPTER KIT
-Set of 4 Premium Quality Adapters
-5x4.75 Inch Bolt Pattern
-12mm x 1.50 Wheel Studs and Nuts
-2 Inches Thick
-CNC Precision Machined 6061 Billet Aluminum
-Wheel Studs are Hardened Grade 8 Carbon Steel