1978 Mack Rd Recalls, Complaints & Specs

7 safety recalls list the 1978 Mack Rd. Check your own VIN below.

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7 safety recalls for the 1978 Mack Rd

Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.

1. Engine (engine and engine cooling)

   NHTSA 79V133000 Reported May 31, 1979 23,000 vehicles potentially affected MACK TRUCKS, INCORPORATED

   In the event of turbocharger compressor wheel failure, one or more of the four capscrews that hold the turbocharger together may be struck by parts of the compressor wheel, resulting in the capscrews being damaged. If these capscrews are damaged to the point that they allow the compressor back plate to dislocate from the turbocharger…

   Remedy: Dealer will install a shield for the heads of the four capscrews, along with stronger sae 8 grade 8 capscrews, if necessary, at no cost to owner.

2. Steering wheel/handle bar (steering)

   NHTSA 79V134000 Reported May 30, 1979 64,150 vehicles potentially affected MACK TRUCKS, INCORPORATED

   In the involved trucks it is possible the adjustable steering column rear mounting bracket could fail, allowing steering wheel assembly to fall down onto the operator"s lap.

   Remedy: Dealer will install an additional bracket in this area to prevent the steering wheel from dislocating in the event of a bracket failure.

3. Steering wheel/handle bar (steering)

   NHTSA 79V082000 Reported April 3, 1979 12,000 vehicles potentially affected MACK TRUCKS, INCORPORATED

   An improper pinch bolt and nut may have been used in the clamping of the steering shaft to the steering gear input shaft. Due to clamping force loads applied at the bolt, the nut could yield, resulting in looseness of the input shaft yoke. Should this condition go unnoticed, spline wear could cause shaft separation.

   Remedy: Vehicles will be inspected and, if necessary, the correct fasteners will be installed at no charge to owner.

4. Multiple axle (suspension)

   NHTSA 79V017000 Reported January 12, 1979 4,000 vehicles potentially affected MACK TRUCKS, INCORPORATED

   A casting deficiency exists in the lower section of the caps resulting in a reduction in the thickness of the material. Failure of a cap can allow the end of the rear spring to detach from the axle housing.

   Remedy: Dealer will inspect and, if necessary, replace any of the spring insulator caps found to be defective. This will be done at no cost to owner.

5. Hanger/bracket (suspension)

   NHTSA 79V018000 Reported January 12, 1979 17 vehicles potentially affected MACK TRUCKS, INCORPORATED

   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.

6. Interconnecting assembly(wiring) (service brakes)

   NHTSA 78V210000 Reported October 3, 1978 19,370 vehicles potentially affected MACK TRUCKS, INCORPORATED

   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.

7. Arm (steering)

   NHTSA 78V172000 Reported August 8, 1978 13,800 vehicles potentially affected MACK TRUCKS, INCORPORATED

   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 Rd. 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 Rd model years

Recall and complaint counts for every Mack Rd model year in NHTSA's database.

Checking a specific 1978 Mack Rd

Other Mack models

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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.