Specifications: Aluminum Wheels Only Steer Axles Only 1.00" Hole Diameter - 1/2" Hole Depth Features: Stays On Wheels Zinc Plated To Resist Corrosion Sold In Sets of 6 Per Axle Machined from Solid Steel Bar Stock Non-Threaded Supported Brake Drums: Arvin Meritor N/A Gunite 3753AX 3796X 3598B 3754 3771 3772X 3595AX 3596BX Conmet 107864 Motor Wheel Centrifuse N/A Webb 66866B 61527B 65555B 65670B 65545B 65670B