MACKMb
NHTSA vehicle recall lookup
1977 Mack Mb recalls
There are 4 NHTSA recall campaigns associated with this vehicle configuration.
Live NHTSA dataVehicle taxonomy resolved as Mack Mb.
Most-mentioned components
WHEELS · 1SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING) · 1STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM · 1SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET · 1
Campaign 77V096000
Wheels
May 6, 1978
Summary
THE FRONT WHEEL RIM CLAMP STUDS, INSTALLED ON THE INVOLVED VEHICLES, MAY NOT HAVE BEEN MANUFACTURED CORRECTLY, CAUSING A BRITTLE CONDITION IN THE THREAD ROOT AREA. THE STUDS COULD EVENTUALLY CRACK AND BREAK WHEN WHEEL NUTS ARE TIGHTENED TO SPECIFICATIONS.
Remedy
Open campaign page →
THE DEALER WILL REPLACE ALL SUSPECT FRONT WHEEL STUDS, WITHOUT CHARGE TO OWNER.
Campaign 78V210000
Service Brakes, Air › Antilock › Interconnecting Assembly(Wiring)
Mar 10, 1978
Summary
DELAYS OF UP TO ABOUT 2 SECONDS MAY EXIST IN THE BRAKE APPLICATION TIMES TO THE BRAKES ON THE BOGIE AXLES IN THE PRESENCE OF CERTAIN TYPES OF WHEEL SPEED SENSOR SIGNAL DISCONTINUITIES OR DISTORTIONS THAT MAY OCCUR AS A RESULT OF SENSOR WIRE FAILURE. THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".
Remedy
Open campaign page →
DEALER WILL INSTALL NEW WHEEL SPEED SENSORS THAT INCORPORATE IMPROVED WIRING AND THE PRESENT BOGIE ANTI-WHEEL LOCK SYSTEM WILL BE CHANGED TO AN AXLE-TO-AXLE SYSTEM FOR IMPROVED RELIABILITY.
Campaign 78V172000
Steering › Linkages › Knuckle › Spindle › Arm
Aug 8, 1978
Summary
THE EXISTING CROSS STEERING ARMS MAY HAVE INSUFFICIENT FATIGUE LIFE IN THE NECK AREA. THIS IS NEAR THE BOSS FOR THE CROSS STEERING TUBE BALL JOINT CONNECTION. FAILURE OF EITHER OF THE CROSS STEERING LEVERS COULD LEAD TO LOSS OF STEERING CONTROL OF THE RIGHT FRONT WHEEL.
Remedy
Open campaign page →
THE DEALER WILL INSPECT AND, IF NECESSARY, INSTALL CROSS STEERING ARMS OF IMPROVED DESIGN AND GREATER STRENGTH.
Campaign 77V205000
Suspension › Rear › Springs › Leaf Spring Assembly › Hanger/Bracket
Sep 11, 1978
Summary
A DEFICIENCY EXISTS IN THE WELDS SECURING THE REAR SPRING INSULATOR BRACKET TO THE AXLE HOUSING. THIS IS DUE TO IMPROPER POSITIONING OF THE WELD, IN RELATIONSHIP TO THE BRACKET AND AXLE HOUSING. FAILURE OF THE WELDS WOULD CAUSE SEPARATION OF THE SPRING INSULATOR BRACKET AND THE AXLE HOUSING, RESULTING IN IMPROPER ALIGNMENT OF THE AFFECTED AXLE.
Remedy
Open campaign page →
DEALER WILL REWELD THE INSULATOR SPRING BRACKET AT NO COST TO OWNER.
Does this mean my vehicle has an open recall?
No. Year/make/model results show campaigns associated with this vehicle configuration. RecallSight can decode your VIN and build the research dossier here; NHTSA remains authoritative for whether a specific VIN has an unrepaired recall.
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Review the remedy and manufacturer guidance for each campaign. Safety recall remedies are generally provided by manufacturers without charge when the vehicle is covered.
Model history
See every Mack Mb model year
Browse all official vPIC model years, including years RecallSight has not indexed yet, then compare the evidence as each year is loaded.