Webb Brake Drum 16.5 x 7 Balanced Outboard. NEW patented Webb CRT™ vents increase airflow for superior heat transfer efficiency and cooler wheel-end operating temperatures. 10% Cooler temperatures mean your brake drums last 10% longer for lower maintenance cost. Designed, cast, and machined in the USA to all applicable industry standards and recommended practices including FMVSS, SAE, TMC, ASTM, etc. Backed by a nationwide warranty and the best product support in the business. Machine-to-Balance within industry recommended practice per TMC RP608. Webb Wheel Products is your OE first-fit and aftermarket heavy-duty wheel-end component parts leader.