4) 1.5" Wheel Adapters 8x6.5 to 8x180 For Silverado 1500 2500 HD Sierra 2500 HD | eBay
Amazon.com: 8x6.5 to 8x180 Forged Wheel Adapters 4pcs 2 inch Compatible with Chevy GMC 8 Lug, 8x165.1 to 8X180 Wheel Adapter with M14X1.5 Studs| Compatible with Suburban Express Silverado 2500 3500 Savana Sierra : Automotive
SET OF 4 | 8 Lug Wheel AdapterS | 8x6.5 to 8x180 | 2.0" Thick
Amazon.com: 2.00" Bora Wheel Adapters for GMC 8x6.5 to 8x180 (Set of 4) : Automotive