Suspension:tandem axle:rear:v-bolt and attachments
Defect Summary
The tee bracket, which is mounted on the front axle of the bogie, may fail due to vibration brought on by road surface irregularities. Bracket failure would leave the tee bracket unsupported and cause broken hose connector fittings. This would result in automatic application of the spring emergency brakes.
Corrective Action
The dealer will replace the defective bracket with a redesigned version.
Similar Recalls
Other recalls from Mack Trucks, Inc. or involving Suspension.
FAQ: Recall 78V031000
Your rights, the repair process, and what each field on this page means.
What is recall 78V031000?
NHTSA recall 78V031000 was issued by Mack Trucks, Inc. on February 9, 1978. It addresses: Suspension:tandem axle:rear:v-bolt and attachments. The recall affects approximately 33,000 vehicles, with the defect involving the Suspension component.
How do I get this recall repaired?
Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 78V031000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.