World American is the heavy duty and export division of Midwest truck & auto parts, Inc. We supply drivetrain, brake, steering, electrical and hydraulic components to the heavy, duty aftermarkets. Specifically, we distribute manual transmission & transfer case components, differential components, complete rebuild kits, bearing kits, ring & pinion gear sets, cases, housings, axles, yokes, u-joints, air brake valves, brake chambers brake hardware kits, air springs and more.