Vehicle recall 78V051000 · March 9, 1978

Peterbilt CB300 and Kenworth Hustler

The power steering gear ball studs may fail under certain severe operating conditions or steering misadjustment conditions.

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

Summary: The power steering gear ball studs may fail under certain severe operating conditions or steering misadjustment conditions.
Remedy: The dealer will replace defective steering gear ball studs without charge to owner.
Notes: Vehicle description: heavy trucks equipped with sheppard 592 power steeringgear boxes and rockwell FL901 axles.system: steeering; power steering gear.consequences of defect: this condition would cause a loss of vehicle controland, possibly, a vehicle accident.

Recall details

NHTSA campaign: 78V051000
Reported to NHTSA: March 9, 1978
Filed by: PACCAR, INCORPORATED
Owner notification: April 11, 1978
Vehicles potentially affected: 690
Initiated by: the manufacturer
Components: Steering › Linkages

Recall 78V051000 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.

Kenworth Hustler (1972-1976): 1976, 1975, 1974, 1973, 1972
Peterbilt CB300 (1972-1976): 1976, 1975, 1974, 1973, 1972

Has your Kenworth 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.

Check your VIN with NHTSA

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Kenworth dealer can also check your VIN. Recall repairs are free.