Hearth Record

Suspension: rear: springs: leaf spring assembly: leaf (Mack)

Vehicle recall 76V-004. NHTSA received MACK TRUCKS, INCORPORATED’s report on Jan 13, 1976.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received MACK TRUCKS, INCORPORATED’s report on Jan 13, 1976. Copied from NHTSA on Oct 28, 2026.

Every line below is in NHTSA’s own words, with its source beside it.

What’s wrong with it?

The notice gives no hazard in a field of its own.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.

  • NHTSA’s part: Suspension: rear: springs: leaf spring assembly: leaf.

What should you do?

The notice gives no remedy in a field of its own.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.

  • How to reach the firm: MACK CAMPAIGN NO SC071.TRUCKS EQUIPPED WITH SWTL-56 SERIES REAR AXLE.POSSIBILITY THAT THE REAR SUSPENSION WAS ASSEMBLED WITH AN INCORRECT TRUNNIONTHAT HAS A RADIUSED SPRING SEAT, CREATING A LINE OF CONTACT BETWEEN THE SPRINGSEAT AND THE SPRING ITSELF, SUBJECTING THESE COMPONENTS TO HIGH STRESSCONCENTRATIONS.IF THIS CONDITION EXISTS IT COULD ULTIMATELY LEAD TO PREMATURESPRING FAILURE, AND PERMIT AXLE ASSEMBLY DISLOCATION THAT COULD RESULT IN LOSSOF VEHICLE CONTROL WITHOUT WARNING TO THE DRIVER, WITH POSSIBLE VEHICLE CRASH.(CORRECT BY INSPECTING AND INSTALLING SPECIFIED SPRING TRUNNIONS THATINCORPORATE FLATSPRING SEATS).
  • Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.

Which ones are recalled?

NHTSA counts 54 vehicles potentially involved, across everything this recall names.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.

  • Mack Uand 1975, before the model years listed here
  • Mack MBand 1975, before the model years listed here
  • Mack Rand 1975, before the model years listed here
  • Mack Fand 1975, before the model years listed here

Who is recalling it?

  • Made by MACK TRUCKS, INCORPORATED.
Source:

NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.

What the record doesn’t say

  • NHTSA’s recall file doesn’t say whether anyone was hurt.
  • Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
  • This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
  • How many have been returned or fixed isn’t in the notice.
Source:

Hearth Record wrote these lines.

Sources

Source:

Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

Made up for this guide: no real place is shown

Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 28, 2026. Updated monthly.

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Who published it, when, and how often it changes sit beside each fact, with a link to the agency’s own file.

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