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Mack CH Recall 93V024: Trailer Hitches

NHTSA campaign 93V024, reported February 16, 1993, 4,924 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 93V024MACK TRUCKS, INCORPORATED
Component
TRAILER HITCHES
Problem
THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.
Risk
THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.
Remedy
REPLACE THE CARRIER YOKE BOLTS.
Notes
SYSTEM: TRAILER YOKE.VEHICLE DESCRIPTION: HEAVY TRUCKS.

Affected vehicles

Mack CH19921993
Mack CL19921993
Mack DM19921993
Mack MH19921993
Mack MR19921993
Mack RB19921993
Mack RD19921993
Mack RM19921993