MACK RM 1987: STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

General Information

NHTSA Campaign ID Number: 88V043000

Make Model Year
MACK RM 1987
Date Owners Notified Date Received by ODI Date Added to Database
1988-03-25 1988-03-28 1988-04-06

Production Dates: 1985-01-01 - 1988-01-01

Manufacturers Involved: Mack Trucks, Inc.

Component: STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

Potential Number Of Units Affected: 259

Report Initiator: MFR MFR Report

Summary

THE STEERING SHAFT SPLINE ENGAGEMENT IS ONLY .52, THE RECOMMENDED ENGAGEMENT IS 2 INCHES.

Consequence

UNDER IMPACTS SUCH AS ROAD POTHOLES, IT COULD RESULT INSHAFT DISENGAGEMENT. THE DRIVER WOULD IMMEDIATELY LOSE STEERING CONTROLWITHOUT WARNING AND VEHICLE CRASH COULD OCCUR.

Remedy

REPLACE SHAFTS THAT MEASURE UNDER THE MINIMUM ENGAGEMENT DIMENSIONS WITH A LONGER SHAFT.

Notes

SYSTEM: STEERINGVEHICLE DESCRIPTION: TRUCKS