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Mack Mack Recall 89V022: Suspension:Rear:Springs:Leaf Spring Assembly:U-Bolt, Leaf Spring To Axle

NHTSA campaign 89V022, reported February 17, 1989, 18 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 89V022MACK TRUCKS, INCORPORATED
Component
SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE
Problem
AN INCORRECT 3/4 INCH BOLT WAS INSTALLED ON RT/RS 450 SUSPENSION.
Risk
THIS BOLT MAY BREAK, CAUSING DISENGAGEMENT OF THE BEAM CONNECTION OF REAR SUSPENSION, RESULTING IN LOSS OF CONTROL, WHICH COULD RESULT IN AN ACCIDENT.
Remedy
RETROFIT CHASSIS WITH 1 INCH BOLTS.
Notes
SYSTEM: SUSPENSION.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS BUILT WITH HENDRICKSON RT/RS 450SUSPENSION.

Affected vehicles

Mack Mack198419851986198719881989