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Vehicle recall 83V101000 · September 27, 1983

Mack MS200, MS250P and 2 more models

Bolted installation of the steering gear housing has a tendency to loosen in service.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
Bolted installation of the steering gear housing has a tendency to loosen in service. This is due to a backward installation of the lockwashers, which are bellville type, and a resultant incorrect torque on the bolts.
Remedy
All recalled vehicles will have bellville type lockwashers at steering gear housing attach points replaced with standard split-type lockwashers.
Notes
Vehicle description: trucks.system: steering system; steering gear mounting hardware.consequences of defect: loosening of the steering gear housing may result inerratic steering and possibly an accident.

Recall details

NHTSA campaign
83V101000
Reported to NHTSA
September 27, 1983
Filed by
MACK TRUCKS, INCORPORATED
Owner notification
January 3, 1984
Vehicles potentially affected
1,486
Initiated by
the manufacturer
Components
Steering › Gear box (other than rack and pinion)
Recall 83V101000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Mack been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

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