Recall campaignNHTSA 87V123000 Service brakes, air: supply: check valve ComponentService brakes, air: supply: check valveManufacturerESTABLISHMENT INDUSTRIESVehicles affected188Reported to NHTSA1987-08-05Owners notified1986-11-24 Defect descriptionOVERLOADED REAR SUSPENSION MAY AFFECT BRAKING ABILITY.Safety riskIMPAIRED BRAKING ABILITY COULD RESULT IN AN ACCIDENT.Manufacturer remedyREPLACE BRAKE PROPORTIONING VALVE.