1978 Mack Mb Recalls, Complaints & Specs
3 safety recalls list the 1978 Mack Mb. Check your own VIN below.
3 safety recalls for the 1978 Mack Mb
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Hanger/bracket (suspension)
The steel brackets on the suspension beam were found to be deficient due to excessive shrinkage and low mechanical properties. Failure of one or both of these brackets could cause a separation of the axle housing from the suspension.
Remedy: The dealer will inspect and, if necessary, replace any suspect bogie spring insulator caps with new caps meeting the proper specifications at no cost to owner.
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Interconnecting assembly(wiring) (service brakes)
Delays of up to about 2 seconds may exist in the brake application times to the brakes on the bogie axles in the presence of certain types of wheel speed sensor signal discontinuities or distortions that may occur as a result of sensor wire failure. This constitutes a non-compliance to federal motor vehicle safety standard no. 121, "air…
Remedy: Dealer will install new wheel speed sensors that incorporate improved wiring and the present bogie anti-wheel lock system will be changed to an axle-to-axle system for improved reliability.
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Arm (steering)
The existing cross steering arms may have insufficient fatigue life in the neck area. This is near the boss for the cross steering tube ball joint connection. Failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.
Remedy: The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.
No owner complaints on file
NHTSA has no owner complaints on file for the 1978 Mack Mb. For context, the average model year in NHTSA's database has dozens; a zero can mean a reliable vehicle, a rare one, or both.
Compare Mack Mb model years
Recall and complaint counts for every Mack Mb model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 1965 Mack Mb | 1 | 0 |
| 1966 Mack Mb | 1 | 0 |
| 1967 Mack Mb | 2 | 0 |
| 1968 Mack Mb | 2 | 0 |
| 1969 Mack Mb | 2 | 0 |
| 1970 Mack Mb | 3 | 0 |
| 1971 Mack Mb | 5 | 0 |
| 1972 Mack Mb | 4 | 0 |
| 1973 Mack Mb | 3 | 0 |
| 1974 Mack Mb | 4 | 0 |
| 1975 Mack Mb | 4 | 0 |
| 1976 Mack Mb | 2 | 0 |
| 1977 Mack Mb | 4 | 0 |
| 1978 Mack Mb | 3 | 0 |
| 1979 Mack Mb | 1 | 0 |
Checking a specific 1978 Mack Mb
How do I know if my 1978 Mack Mb has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 3 campaigns currently list the 1978 Mack Mb; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mack dealer with your VIN and the NHTSA campaign number (for example 78V172000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Mack models
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Ch6 complaints
- Gu6 complaints
- CH6005 complaints
- Cxu5 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.