NHTSA recall 87V112000
Service brakes, air › Controls, pedals and linkages
GMC T8H and 1 more
Reported Jul 20, 1987166 vehicles affectedGENERAL MOTORS CORP.Built Nov 1, 1985 – Apr 1, 1987
The defect
The brake interlock shuttle valve assembly could under a heavy service brake application fracture or fragment the internal shuttle piston.
The risk
The fracture or fragmention of the interlock shuttlevalve piston could result in partial or complete loss of rear braking. areduction in braking ability could result in a vehicle crash without priorwarning.
The remedy
New improved brake interlock shuttle assembly will be installed.