Specifications: Aluminum Wheels Only Steer Axles Only 1.28" 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 Threaded Inside for Accurate Alignment Supported Brake Drums: Arvin Meritor N/A Gunite N/A Conmet 107164 107453 107862 107193 10001780 10001781 10001783 10005332 Motor Wheel Centrifuse N/A Webb 65547B 61528B 65167B 61528B 65548B 65554B 65710B 65161B