Steering:column shaft upper
Defect Summary
It has been determined that two screws that are part of the bearing assembly located at the cab dash sheet may not have been tightened properly. As a result, the upper steering shaft may be free to "float" throughout much of its length which may result in inadequate engagement in the slip splines of the lower steering shaft. Axle articulation could result in disengagement of the lower steering shaft slip splines.
Corrective Action
Dealer will install a sleeve between the dash sheet bearing and the upper steering shaft lower yoke to assure positive upper steering shaft location.
Similar Recalls
Other recalls from Mack Trucks, Inc. or involving Steering.
FAQ: Recall 79V130000
Your rights, the repair process, and what each field on this page means.
What is recall 79V130000?
NHTSA recall 79V130000 was issued by Mack Trucks, Inc. on May 30, 1979. It addresses: Steering:column shaft upper. The recall affects approximately 2,187 vehicles, with the defect involving the Steering component.
How do I get this recall repaired?
Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 79V130000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.