The defect
SPRING SEAT CAN DEFORM, WHICH CAUSES A DECREASE IN THE CLAMPING FORCE IN THE SUSPENSION ASSEMBLY. LOSS OF CLAMPING FORCE MAY BRING ABOUT AXLE MISALIGNMENT OR AXLE HOUSING FAILURE.
The remedy
THE AXLE HOUSING WILL BE INSPECTED AND REPLACED, IF NECESSARY. THE SPRING SEATS WILL ALSO BE REPLACED.
NHTSA's own wording · initiated by ODI
Vehicles covered
| Model | Model years |
|---|---|
| Mack CF | 1981, 1982 |
| Mack F series | 1981, 1982 |
| Mack FM Series | 1981, 1982 |
| Mack MB Series | 1981, 1982 |
| Mack MC Series | 1981, 1982 |
| Mack MR Series | 1981, 1982 |
| Mack R series | 1981, 1982 |
| Western RL Series | 1981, 1982 |
| Western RS Series | 1981, 1982 |
| Western RWL Series | 1981, 1982 |
| Western RWS Series | 1981, 1982 |
| Western WL Series | 1981, 1982 |
| Western WS Series | 1981, 1982 |
Components: SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY
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 CF | 1981 | 0 | 5 |
| Mack CF | 1982 | 0 | 3 |
| Mack F series | 1981 | 0 | 1 |
| Mack F series | 1982 | 0 | 1 |
| Mack FM Series | 1981 | 0 | 1 |
| Mack FM Series | 1982 | 0 | 1 |
| Mack MB Series | 1981 | 0 | 1 |
| Mack MB Series | 1982 | 0 | 1 |
| Mack MC Series | 1981 | 0 | 3 |
| Mack MC Series | 1982 | 0 | 1 |
| Mack MR Series | 1981 | 0 | 2 |
| Mack MR Series | 1982 | 0 | 1 |
| Mack R series | 1981 | 0 | 4 |
| Mack R series | 1982 | 0 | 2 |
| Western RL Series | 1981 | 0 | 2 |
| Western RL Series | 1982 | 0 | 1 |
| Western RS Series | 1981 | 0 | 2 |
| Western RS Series | 1982 | 0 | 1 |
| Western RWL Series | 1981 | 0 | 5 |
| Western RWL Series | 1982 | 0 | 2 |
| Western RWS Series | 1981 | 0 | 5 |
| Western RWS Series | 1982 | 0 | 2 |
| Western WL Series | 1981 | 0 | 3 |
| Western WL Series | 1982 | 0 | 1 |
| Western WS Series | 1981 | 0 | 3 |
| Western WS Series | 1982 | 0 | 1 |
Other suspension recalls in 1984
13 of the 164 recall campaigns reported to NHTSA in 1984 concerned the suspension; MACK TRUCKS, INCORPORATED filed 245 campaigns in all.
| 84V159000 20 Dec 1984 | FREIGHTLINER CORP. |
| 84V153000 28 Nov 1984 | GENERAL MOTORS CORP. |
| 84V142000 7 Nov 1984 | MACK TRUCKS, INCORPORATED |
| 84V121000 5 Oct 1984 | DOLPHIN RV PRODUCTS INC. |
| 84V118000 1 Oct 1984 | PREVOST CAR, INCORPORATED |
| 84V110000 21 Sept 1984 | OSHKOSH TRUCK CORPORATION |
| 84V104000 6 Sept 1984 | FORD MOTOR COMPANY |
| 84V089000 14 Aug 1984 | GRUMMAN ALLIED IND., INC. |
NHTSA recalls (public domain) · all recalls of 1984