Gear box: shaft pitmanRecall 83V-121 · Mack vehicles

MACK TRUCKS, INCORPORATED recall 83V-121 covers 1,377 Mack vehicles for a gear box: shaft pitman problem, reported to NHTSA on November 18, 1983.

Vehicles repairedNo manufacturer report yet

Vehicles affected1,3772 models

ReportedNov 18, 1983Owners notified Apr 13, 1984

Complaints since0Same system, after the recall

Source: NHTSA recall 83V121000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

MOUNTING OF THE PITMAN ARM MAY LOOSEN AND LEAD TO EXCESSIVE WEAR IN EITHER THE PITMAN ARM SPLINES OR THE STEERING GEAR SHAFT SPLINES, OR BOTH. THIS CONDITION IS DUE TO INCORRECT TIGHTENING OF THE MOUNTING SCREWS DURING ASSEMBLY.

What to do

The fix

THE DEALER WILL INSPECT AND PROPERLY TIGHTEN THE PITMAN ARM RETAINING SCREWS.

VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: STEERING; PITMAN ARM.CONSEQUENCES OF DEFECT: LOOSENESS IN THE STEERING LINKAGE MAY RESULT IN LOSS OFSTEERING CONTROL AND THE POSSIBILITY OF A VEHICLE ACCIDENT.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

2 models

Vehicles in this recall

Mack FWS1978, 1979

Mack RWL1978, 1979

Built from January 1, 1978 to March 1, 1979. Not every vehicle in these model years is included; check by VIN.