1966 GMC H8500 Recall

Campaign:: 68V064000 on 10/11/1979
Component:: Service brakes, air:supply:check valve
Affected:: 22,683
Notes:: 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.)