Mack Recall 76V004000: Suspension, Rear, Springs, Leaf Spring Assembly, Leaf

NHTSA recall 76V004000 · announced January 13, 1976 · filed by Mack Trucks, Incorporated · 54 units affected

Official NHTSA recall notice →

Notes

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).

Vehicles covered by this recall

• 1975 Mack F
• 1975 Mack Mb
• 1975 Mack R
• 1975 Mack U

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.