The defect
INTERFERENCE BETWEEN STEERING GEAR SECTOR SHAFT AND THE FRAME RAIL THROUGH HOLE CAN CAUSE SECTOR SHAFT WEAR AND CAN WEAKEN SHAFT CAUSE IT TO BREAK.
The risk
SHAFT FAILURE DURING VEHICLE OPERATION WOULD CAUSE LOSS OF STEERING CONTROL AND A CRASH WITHOUT PRIOR WARNING.
The remedy
ENLARGE FRAME RAIL THROUGH HOLE TO PREVENT INTERFERENCE: REPLACE STEERING GEAR SECTOR SHAFT IF SCORED.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack R | 1989 |
| Mack RB | 1989 |
| Mack RD | 1989 |
Components: STEERING:GEAR BOX:SHAFT SECTOR
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 R | 1989 | 0 | 3 |
| Mack RB | 1989 | 0 | 3 |
| Mack RD | 1989 | 0 | 3 |
Other steering recalls in 1990
20 of the 208 recall campaigns reported to NHTSA in 1990 concerned the steering; MACK TRUCKS, INCORPORATED filed 245 campaigns in all.
| 90V201000 6 Dec 1990 | PACCAR, INCORPORATED |
| 90V150000 20 Aug 1990 | FLXIBLE CORPORATION |
| 90V136000 6 Aug 1990 | NISSAN NORTH AMERICA, INC. |
| 90V140000 1 Aug 1990 | RVI INC. |
| 90V139000 1 Aug 1990 | RVI INC. |
| 90V120000 15 Jun 1990 | MACK TRUCKS, INCORPORATED |
| 90V103000 1 Jun 1990 | GENERAL MOTORS CORP. |
| 90V099000 22 May 1990 | BLUE BIRD BODY COMPANY |
NHTSA recalls (public domain) · all recalls of 1990