Mack Recall 81V155000: Steering, Gear Box, Shaft Pitman

NHTSA recall 81V155000 · announced December 29, 1981 · filed by Mack Trucks, Incorporated · 225 units affected

The problem

THE PITMAN ARM RETAINING BOLT MAY NOT HAVE BEEN TIGHTENED TO THE REQUIRED SPECIFICATIONS DUE TO A DESIGN CHANGE. INADEQUATE RETENTION OF THE BOLT TO THE OUTPUT SHAFT COULD ALLOW THE PITMAN ARM TO LOOSEN.

What to do

THE DEALER WILL INSPECT AND, IF NECESSARY, RETORQUE THE RETAINING BOLT TO PROPER SPECIFICATIONS AT NO CHARGE.

Official NHTSA recall notice →

Notes

VEHICLE DESCRIPTION: TRUCKS.SYSTEM: STEERING; PITMAN ARM RETAINING BOLTS.CONSEQUENCES OF DEFECT: SHOULD THIS LOOSE CONDITION GO UNCORRECTED, THE SPLINEDGROOVES ON THE OUTPUT SHAFT COULD WEAR SMOOTH, CAUSING LOSS OF STEERINGCONTROL, WITHOUT PRIOR WARNING, AND A VEHICLE ACCIDENT.

Vehicles covered by this recall

• 1981 Mack Mc Series
• 1981 Mack Mr Series
• 1981 Mack R Series
• 1981 Mack Rd Series

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