Mack Recall 80V054000: Steering, Gear Box (other Than Rack And Pinion)

NHTSA recall 80V054000 · announced May 6, 1980 · filed by Mack Trucks, Incorporated · 109 units affected

The problem

THE PREFABRICATED PINCH BOLT CLAMP AT THE LOWER STEERING SHAFT LOWER YOKE MAY NOT PERFORM ADEQUATELY WHEN TIGHTENED TO SPECIFICATIONS. THE CLAMP MAY THEN DEFORM AND LOSS OF CLAMPING FORCE AND STEERING SHAFT DISENGAGEMENT MAY RESULT.

What to do

DEALER WILL RETROFIT WITH LOWER STEERING SHAFT LOWER YOKES THAT PROVIDE FOR INTEGRAL PINCH BOLT INSTALLATION IN PLACE OF PREVIOUS SEPARATELY FABRICATED CLAMP FOR THE PINCH BOLT.

Official NHTSA recall notice →

Notes

VEHICLE DESCRIPTION: TRUCKS.SYSTEM: STEERING; POWER STEERING SHAFT; FABRICATED PINCH BOLT CLAMP.CONSEQUENCES OF DEFECT: DISENGAGEMENT OF THE STEERING SHAFT MAY CAUSE LOSS OFVEHICLE CONTROL WITHOUT PRIOR WARNING AND, POSSIBLY, AN ACCIDENT.

Vehicles covered by this recall

• 1976 Mack R Series
• 1977 Mack R Series
• 1978 Mack R Series
• 1979 Mack R Series
• 1980 Mack R Series
• 1976 Mack U Series
• 1977 Mack U Series
• 1978 Mack U Series
• 1979 Mack U Series
• 1980 Mack U Series

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