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NHTSA Campaign 91V123000

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

Issued by GENERAL MOTORS CORP. · Reported Jul 16, 1991 · 3,085 vehicles affected

What's wrong

BRAKES MAY HAVE MISSING REAR AXLE OUTER BEARING RETAINING RING AND OR GREATER THAN SPECIFIED BEARING END PLAY. EITHER CONDITION ALLOWS THE ROTOR AND HUB ASSEMBLY TO SHIFT POSITION RELATIVE TO THE SPINDLE. THIS MOVEMENT CAN CAUSE BRAKE CALIPER PISTON RECEDE FARTHER THAN NORMAL INTO THE PISTON BORE WHICH WOULD REQUIRE GREATER THAN NORMAL BRAKE FLUID DISPLACEMENT WHEN THE SERVICE BRAKES ARE APPLIED.

Consequence

THIS CONDITION LEADS TO INCREASED STOPPING DISTANCE, ANDSHOULD MINIMUM STOPPING DISTANCE BE REQUIRED, IT COULD RESULT IN AN ACCIDENTWITHOUT WARNING.

Remedy

REPLACE BOTH REAR AXLE HUBS.

Vehicles affected by this recall

Make Model Year Units
CHEVROLET P3 1990 3,085
CHEVROLET P3 1991 3,085
GMC P3 1990 3,085

Source: NHTSA Campaign 91V123000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.