Leaf spring assembly: u-bolt, leaf spring to axleRecall 89V-022 · 1984–1989 Mack Mack
MACK TRUCKS, INCORPORATED recall 89V-022 covers 18 1984–1989 Mack Mack for a leaf spring assembly: u-bolt, leaf spring to axle problem, reported to NHTSA on February 17, 1989.
Source: NHTSA recall 89V022000 and manufacturer quarterly reports. Started by the manufacturer.
What's wrong
The problem
AN INCORRECT 3/4 INCH BOLT WAS INSTALLED ON RT/RS 450 SUSPENSION.
The 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.
What to do
The fix
RETROFIT CHASSIS WITH 1 INCH BOLTS.
SYSTEM: SUSPENSION.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS BUILT WITH HENDRICKSON RT/RS 450SUSPENSION.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.