Access the National Highway Traffic Safety database of MACK DM SERIES recalls and defective parts found
on MACK DM SERIES automobiles. The National Highway Traffic Safety administration is authorized
to order the MACK DM SERIES manufacturers to recall and repair vehicles or parts of motor vehicle
equipment when its investigation indicates that they contain serious safety defects in their design,
structure, body, or performance.
| Vehicle | Component | Manufacterer |
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| 1988-1989 MACK DM SERIES | STEERING:WHEEL AND HANDLE BAR Units affected: 16000 | MACK TRUCKS, INCORPORATED Report Date: 1989-05-22 |
| Summary: STEERING WHEEL RETAINING NUTS MAY HAVE BEEN IMPROPERLY INSTALLED AND/OR TORQUED. |  |
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| 1988 MACK DM SERIES | SUSPENSION:REAR:SPRINGS Units affected: 152 | MACK TRUCKS, INCORPORATED Report Date: 1989-03-03 |
| Summary: DOWELS MAY HAVE BEEN OMITTED DURING SPRING CAP INSTALLATION; THIS WOULD PUT SHEAR LOAD ON THE FOUR (4) SPRING CAP BOLTS. |  |
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| 1987-1988 MACK DM SERIES | STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS Units affected: 3127 | MACK TRUCKS, INCORPORATED Report Date: 1989-03-03 |
| Summary: AN INCORRECT HIGH PRESSURE POWER STEERING HOSE MAY HAVE BEEN INSTALLED. |  |
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| 1987 MACK DM SERIES | SUSPENSION:MULTIPLE AXLE Units affected: 129 | MACK TRUCKS, INCORPORATED Report Date: 1988-09-27 |
| Summary: THE UNDERSIZED WELD ON THE REAR SUSPENSION BRACKETRY ATTACHMENT CAN CAUSE BRACKET FAILURE. |  |
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| 1987 MACK DM SERIES | WHEELS Units affected: 19 | MACK TRUCKS, INCORPORATED Report Date: 1988-09-27 |
| Summary: FASTENERS THAT HOLD THE REAR WHEEL TO THE HUB AND DRUM ASSEMBLY MAY BE IMPROPERLY TORQUED. |  |
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| 1988 MACK DM SERIES | STEERING:LINKAGES Units affected: 6400 | MACK TRUCKS, INCORPORATED Report Date: 1988-07-27 |
| Summary: SOME OF THE NUTS/BOLTS USED TO FASTEN THE STEERING PITMAN ARM MAY LOOSEN. |  |
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| 1988 MACK DM SERIES | POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING Units affected: 203 | MACK TRUCKS, INCORPORATED Report Date: 1988-05-23 |
| Summary: CLAMP PLATES USED BETWEEN THE DRIVE SHAFT AND CARRIER YOKES MAY CRACK AND COULD BREAK DUE TO IMPROPER HEAT TREATMENT. |  |
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| 1987 MACK DM SERIES | STEERING:LINKAGES Units affected: 323 | MACK TRUCKS, INCORPORATED Report Date: 1987-11-23 |
| Summary: CROSS STEERING LEVERS MAY BE IMPROPERLY HEAT TREATED AND SUBJECT TO FAIL DURING NORMAL OPERATION. |  |
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| 1983-1984 MACK DM SERIES | STEERING:WHEEL AND HANDLE BAR Units affected: 4393 | MACK TRUCKS, INCORPORATED Report Date: 1984-03-22 |
| Summary: IMPROPER STEERING CLAMP BOLTS AND TORQUE APPLIED DURING INSTALLATION. THE BOLT COULD FAIL, ALLOWING THE STEERING YOKE TO BECOME LOOSE. |  |
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| 1980-1981 MACK DM SERIES | SEAT BELTS Units affected: 22 | MACK TRUCKS, INCORPORATED Report Date: 1981-07-08 |
| Summary: THE INVOLVED TRUCKS DO NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, "OCCUPANT CRASH PROTECTION", IN THAT THE EXTENDED RIDER"S SEAT WAS NOT EQUIPPED WITH A SEAT BELT AS REQUIRED. |  |
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