The defect
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.
The remedy
THE DEALER WILL INSPECT AND, IF NECESSARY, RETORQUE THE RETAINING BOLT TO PROPER SPECIFICATIONS AT NO CHARGE.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack MC Series | 1981 |
| Mack MR Series | 1981 |
| Mack R series | 1981 |
| Mack RD Series | 1981 |
Components: STEERING:GEAR BOX:SHAFT PITMAN
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack MC Series | 1981 | 0 | 3 |
| Mack MR Series | 1981 | 0 | 2 |
| Mack R series | 1981 | 0 | 4 |
| Mack RD Series | 1981 | 0 | 3 |
Other steering recalls in 1981
19 of the 157 recall campaigns reported to NHTSA in 1981 concerned the steering; MACK TRUCKS, INCORPORATED filed 245 campaigns in all.
| 81V154000 29 Dec 1981 | MACK TRUCKS, INCORPORATED |
| 81V001000 2 Dec 1981 | FREIGHTLINER CORP. |
| 81V122000 14 Oct 1981 | WHITE MOTOR CORPORATION |
| 81V117000 2 Oct 1981 | TOYOTA MOTOR CO., LTD. |
| 81V116000 1 Oct 1981 | FREIGHTLINER CORP. |
| 81V112000 23 Sept 1981 | CRANE CARRIER COMPANY |
| 81V109000 16 Sept 1981 | INTERNATIONAL HARVESTER |
| 81V106000 9 Sept 1981 | VOLKSWAGEN OF AMERICA,INC |
NHTSA recalls (public domain) · all recalls of 1981