This article, based on information from manufacturers' specifications and brochures, provides information on some of the mixers that are on the market. Trucks included are: A front-discharge 11-cubic-yard-capacity mixer from Oshkosh Truck Corp.; a front-discharge mixer manufactured by Advance Mixer Inc.; a line of three trucks, compact, standard and tag-axle-equipped, from T. L. Smith Machine Co. Inc.; a full line of ready mix trucks built by Mack Trucks; and a sliding mixer system manufactured by McNeilus Truck and Mfg. Co.