Mack Recall 79V082000: Steering, Steering Wheel/handle Bar

NHTSA recall 79V082000 · announced April 3, 1979 · filed by Mack Trucks, Incorporated · 12,000 units affected

The problem

AN IMPROPER PINCH BOLT AND NUT MAY HAVE BEEN USED IN THE CLAMPING OF THE STEERING SHAFT TO THE STEERING GEAR INPUT SHAFT. DUE TO CLAMPING FORCE LOADS APPLIED AT THE BOLT, THE NUT COULD YIELD, RESULTING IN LOOSENESS OF THE INPUT SHAFT YOKE. SHOULD THIS CONDITION GO UNNOTICED, SPLINE WEAR COULD CAUSE SHAFT SEPARATION.

What to do

VEHICLES WILL BE INSPECTED AND, IF NECESSARY, THE CORRECT FASTENERS WILL BE INSTALLED AT NO CHARGE TO OWNER.

Official NHTSA recall notice →

Notes

VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: STEERING; STEERING SHAFT CLAMP BOLT.CONSEQUENCES OF DEFECT: THIS DEFECT COULD CAUSE LOSS OF VEHICLE CONTROL AND AVEHICLE ACCIDENT.

Vehicles covered by this recall

• 1977 Mack Dm
• 1978 Mack Dm
• 1977 Mack R
• 1978 Mack R
• 1977 Mack Rd
• 1978 Mack Rd
• 1977 Mack U
• 1978 Mack U

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.