NHTSA Campaign Id 68V064000; Date: Jun. 19, 1968
1967 Chevrolet H70; 1968 Chevrolet H70; 1966 Chevrolet H70000; 1967 Chevrolet H80; 1968 Chevrolet H80; 1966 Chevrolet H80000; 1967 Chevrolet J70; 1968 Chevrolet J70; 1966 Chevrolet J70000; 1968 Chevrolet J80; 1966 Chevrolet J80000; 1966 GMC H5500; 1967 GMC H5500; 1966 GMC H7500; 1967 GMC H7500; 1968 GMC H7500; 1966 GMC H8500; 1967 GMC H8500; 1968 GMC H8500; 1966 GMC H9500; 1967 GMC H9500; 1968 GMC H9500; 1966 GMC J7500; 1967 GMC J7500; 1968 GMC J7500; 1966 GMC J8500; 1967 GMC J8500; 1968 GMC J8500; 1966 GMC J9500; 1967 GMC J9500; 1968 GMC J9500
Component: Service Brakes, Air:supply:check Valve
Manufactured by: General Motors Corp.
Affected Units:: 22,683
Possibility the midland-ross air brake application valve assembly internalvalve cage may deteriorate and crack and eventually fail. If a failure occurs, the valve piston could be pushed out of the valve body, resulting in a rapid loss of air at the application valve causing a loss of brake action. (correct by replacing internal valve cage with one of improved construction and material. )
Date Owners notified by Manufacturer: Jun 17, 1968
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