Vehicle recall 77V121000 · August 12, 1977

1976-1977 Freightliner Freightliner

On the involved vehicles, cracks may develop at the base of the inner wheel bearing cup and propagate circumferentially around the barrel of the hub.

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

Summary: On the involved vehicles, cracks may develop at the base of the inner wheel bearing cup and propagate circumferentially around the barrel of the hub. A fracture between the inner hub end and the flange portion of the hub could eventually develop. Failure could occur causing hub separation. Continued operation after hub separation has occurred could result in lock-up of brake assembly, excessive heat generation due to brake lining to drum contact, and progressive damage to the hub, causing the separated hub with the wheel and tire to disengage from the truck.
Remedy: Dealer will replace the aluminum hubs with steel hub, cup and stud assemblies, without charge to owner.
Notes: Vehicle description: trucks equipped with FF-931 front steering axles and motorwheel corporation aluminum hubs.system: suspension; wheels.consequences of defect: either hub failure or complete separation of the wheelassembly could cause loss of vehicle control and an accident.note: driver may hear a sound the instant the hub separates, along withthumping and wheel wobble.

Recall details

NHTSA campaign: 77V121000
Reported to NHTSA: August 12, 1977
Filed by: FREIGHTLINER CORP.
Owner notification: November 14, 1977
Vehicles potentially affected: 163
Initiated by: the manufacturer
Components: Wheels

Recall 77V121000 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.

Freightliner Freightliner (1976-1977): 1977, 1976

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