The defect
DUE TO IMPROPER AND INADEQUATE WELDING PRACTICES, THE FIFTH WHEEL ON THE INVOLVED VEHICLES IS DEFECTIVE. FRAME MOUNTED SUPPORTS MAY HAVE INCOMPLETE OR POOR QUALITY WELDS. THE WELDS COULD SUBSEQUENTLY FAIL ALLOWING SEPARATION OF THE TRACTOR FROM THE TRAILER.
The remedy
THE DEALER WILL INSPECT AND REMOVE THE FIFTH WHEEL AND REWELD THE MOUNTING ANGLES AT NO CHARGE TO THE OWNER.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack MH | 1982, 1983, 1984 |
| Mack R | 1982, 1983, 1984 |
Components: TRAILER HITCHES:FIFTH WHEEL 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 MH | 1982 | 0 | 7 |
| Mack MH | 1983 | 0 | 8 |
| Mack MH | 1984 | 0 | 9 |
| Mack R | 1982 | 0 | 1 |
| Mack R | 1983 | 0 | 1 |
| Mack R | 1984 | 0 | 1 |
Other trailer hitches recalls in 1984
2 of the 164 recall campaigns reported to NHTSA in 1984 concerned the trailer hitches; MACK TRUCKS, INCORPORATED filed 245 campaigns in all.
| 84V059000 15 May 1984 | GREAT DANE TRAILERS, INC. |
NHTSA recalls (public domain) · all recalls of 1984