MACK MR SERIES 1979: SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY

General Information

NHTSA Campaign ID Number: 84V036000

Make Model Year
MACK MR SERIES 1979
Date Received by ODI Date Added to Database
1984-03-23 1984-04-11

Production Dates: 1978-10-01 - 1982-05-01

Manufacturers Involved: Mack Trucks, Inc.

Component: SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY

Potential Number Of Units Affected: 3421

Report Initiator: ODI ODI Report

Summary

SPRING SEAT CAN DEFORM, WHICH CAUSES A DECREASE IN THE CLAMPING FORCE IN THE SUSPENSION ASSEMBLY. LOSS OF CLAMPING FORCE MAY BRING ABOUT AXLE MISALIGNMENT OR AXLE HOUSING FAILURE.

Remedy

THE AXLE HOUSING WILL BE INSPECTED AND REPLACED, IF NECESSARY. THE SPRING SEATS WILL ALSO BE REPLACED.

Notes

VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: SUSPENSION; REAR SPRING SEAT.CONSEQUENCES OF DEFECT: LOSS OF VEHICLE CONTROL COULD OCCUR WITHOUT WARNING,POSSIBLY RESULTING IN AN ACCIDENT.