1993 MACK MH Recall

Campaign:

93V024000 on 03/24/1993

Component:

Trailer hitches

Affected:

4,924

Defect:

The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.

Consequence:

This condition can cause bolt failure and allow thedriveline to separate from the carrier assembly.

Correction:

Replace the carrier yoke bolts.

Notes:

System: trailer yoke.vehicle description: heavy trucks.

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