Known Recalls

Recall campaign · NHTSA 87V121000

Service brakes, air: drum: chamber

GENERAL MOTORS CORP. filed this campaign with NHTSA on 1987-08-03.

Recall campaignNHTSA 87V121000

Service brakes, air: drum: chamber

Component
Service brakes, air: drum: chamber
Manufacturer
GENERAL MOTORS CORP.
Vehicles affected
7,870
Reported to NHTSA
1987-08-03
Owners notified
1987-08-06

Defect description

SEVERE BRAKE CHATTER MAY CAUSE THE BRAKE CHAMBER MOUNTING BRACKETS ON EITHER SIDE TO DEVELOP CRACKS IN THE WELD AREA WHERE THE S CAM SHAFT TUBE ATTACHES TO THE CHAMBER SUPPORT SECTION.

Safety risk

BRACKETS CAN BREAK, RESULTING IN LOSS OF BRAKING ABILITYAT THAT FRONT WHEEL, AND POSSIBLY RESTRICTED STEERING, WHICH COULD LEAD TO AVEHICLE CRASH WITHOUT PRIOR WARNING.

Manufacturer remedy

AS NECESSARY, INSTALL NEW REINFORCED FRONT BRAKE CHAMBER MOUNTING BRACKETS AND INSTALL A FRONT BRAKE LIMITING VALVE ON VEHICLES WITHOUT ONE.

Notes

SYSTEM: BRAKESVEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH 7,500 LB. FRONT AXLE AND MEDIUMDUTY TRUCKS EQUIPPED WITH A 7,000 LB. FRONT AXLE.

Scope of coverage

10 model years across 2 models.

ModelYears on record
Chevrolet B6P0421987 1986 1985 1984 1983
GMC B6P0421987 1986 1985 1984 1983

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.