Self-adjusting and more rust resistant, discs are perfect for boat trailers. Consult your trailer manufacturer about appropriate disc-brake size ... rear seal and grease) and aluminum calipers ...

Kenworth Truck Co. has announced availability of aluminum hubs as a front- and rear-axle option on Kenworth Class 8 trucks and tractors equipped with Bendix ADB22X air disc brakes. The Kirkland, Wash.