NHTSA recall 87V141000
Service brakes, hydraulic › Foundation components
Ford Ranger
The defect
Trucks were built with incorrect rear brake assemblies. consequence of defect: a tendency for rear brake lockup would exist particularly during heavy brake applicaion with a lightly loaded truck. Also, increased stopping distance would be required if the brake modulation (pumping the brakes) IS used to control the vehicle during a hard brake stop.
The remedy
Replace rear brake assemblies.