The defect
THE INVOLVED TRUCKS HAVE PITMAN ARMS WITH TIMING MARKS AND SERRATIONS LOCATED 8 DEGREES OUT OF PROPER ALIGNMENT. WHEN THE CHASSIS IS RAISED TO THE MAXIMUM CONDITION WITH THE WHEELS SUSPENDED OR DROPPED INTO A DEEP HOLE, THE PITMAN ARM AND DRAG LINK CAN GO INTO TOGGLE POSITION.
The remedy
UPON INSPECTION, ALL DEFECTIVE PITMAN ARMS WILL BE REPLACED WITH PROPERLY TIMED ARMS.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack R600 | 1981 |
| Mack R700 | 1981 |
| Mack RD400 | 1981 |
| Mack RD600 | 1981 |
Components: STEERING:LINKAGES
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 R600 | 1981 | 0 | 1 |
| Mack R700 | 1981 | 0 | 1 |
| Mack RD400 | 1981 | 0 | 1 |
| Mack RD600 | 1981 | 0 | 1 |
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 |
| 81V155000 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 |
NHTSA recalls (public domain) · all recalls of 1981