Specifications: 19.50"/22.50"/24.50" Wheel 22mm Wheel Studs 1"-1.063" Wheel Hole Aluminum/Aluminum Wheels Includes: 1 Set of 6 C-2341-GA (Centers Brake Drum/Inner Wheel) Includes: 1 Set of 6 C-1611-AS (Centers Outer Wheel) Brake Drum Hole Size: 1.25" Hole Diameter - 1/2" Hole Depth Features: Dual Wheels Only Stays On Wheels Zinc Plated To Resist Corrosion Sold In Sets of 6 Per Axle Machined from Solid Steel Bar Stock 2 Piece System Allows For Easier Install/Removal Supported Brake Drums: Arvin Meritor N/A Gunite 3753AX 3600A 3771X 3402X 9006X 3807X Conmet 10001776 Motor Wheel Centrifuse N/A Webb 66864B 61950B 66834F 66889B