Description: You are buying a set of 4 automotive wheel adapters (and spacers), enough to widen two axles 3.00" total wheel to wheel at 1.50" per side (one spacer in the kit for each wheel on the axle and this comes with lug nuts). The 3.00" wheel spacers are 1.50" per side and will fit most any vehicle with an 8 x 6.5 wheel stud pattern with M14-1.5 studs, and convert to a 8x170 Wheel. Please measure your studs' distance apart (6.5" spacing on the studs diagonally directly across from each other) first to be sure on your vehicle. There are many applications of the 8X6.5 bolt pattern, but remember to check your studs to be sure! For Chevrolet Models specifically (PLEASE NOTE MANY CHEVROLET HAVE 1/2" OR 9/16" STUDS. MAKE SURE YOU HAVE M14-1.5 STUDS!): CHEVROLET/GMC 2500 & 3500 TRUCKS & VANS (NON-DUALLY) ALL CHEVROLET/GMC AVALANCHE 2500, 4WD 2002-08 CHEVROLET/GMC C-2500 PICKUP 2WD HD 8LUG 1988-00 CHEVROLET/GMC C-3500 2WD 1988-00 CHEVROLET/GMC CK 2500 3500 DUALLY 2WD 4WD 1988-08 CHEVROLET/GMC K-2500 4WD 8LUG 1988-00 CHEVROLET/GMC K-3500 4WD 1988-00 CHEVROLET/GMC SIERRA 2500 2WD, 4WD 1999-08 CHEVROLET/GMC SIERRA 3500 2WD, 4WD 1999-08 CHEVROLET/GMC SUBURBAN K2500 4WD 1988-99 CHEVROLET/GMC VAN EXPRESS VAN 2500, 3500 SAVANA 1997-08 CHEVROLET/GMC YUKON XL 2500 3/4 TON 2WD, 4WD 2000-06 ***Does Not Fit Dually/Dual Rear Wheel*** You are receiving 4 pieces/rings with hole pattern of 8x6.5 to 8x170 wheel. Studs are M14-1.5 and there is a 117mm center bore. If your lug nuts are different for your wheel, you could need to purchase new lugs. Please check your stud thread pattern! Thickness is 1.5" per spacer for 3" wheel to wheel. Lifetime warranty on all our products.