<div class="htmlview paragraph">Disc Brakes offer substantial improvements, in most cases, in performance when compared to drum brakes. Coupled with longer life, less and simplified maintenance, they should offer a most attractive brake system to truck owners and operators. Their application to the more demanding service conditions of trucks, compared to passenger cars, seems logical and necessary with greater potential gain than that which was experienced in lighter vehicles.</div> <div class="htmlview paragraph">A description of activities in developing such a brake system is given, pointing out the successes and problems encountered.</div>