Vehicle recall 79V189000 · August 17, 1979

1977-1978 Peterbilt Peterbilt

The involved vehicles were manufactured with a 5/16 inch thick esna self-locking nut installed on the steering gear input shaft pinch bolt.

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

Summary: The involved vehicles were manufactured with a 5/16 inch thick esna self-locking nut installed on the steering gear input shaft pinch bolt. The nut used may not securely fasten the u-joint to the input shaft.
Remedy: The u-joint yoke and input shaft will be inspected and the pinch bolt and nut will be replaced with the type currently in production. Any other steering components damaged due to the defect will also be replaced.
Notes: Vehicle description: trucks.system: steering assembly; steering column coupling.consequences of defect: the nut could loosen and steering could becomeimpaired; loss of vehicle control and an accident could result.

Recall details

NHTSA campaign: 79V189000
Reported to NHTSA: August 17, 1979
Filed by: PACCAR, INCORPORATED
Owner notification: November 29, 1979
Vehicles potentially affected: 12,000
Initiated by: the manufacturer
Components: Steering › Steering wheel/handle bar

Recall 79V189000 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.

Peterbilt Peterbilt (1977-1978): 1978, 1977

Has your Peterbilt 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 Peterbilt dealer can also check your VIN. Recall repairs are free.