NHTSA Campaign Id 89V022000; Date: Feb. 17, 1989
This bolt may break, causing disengagement of the beam connection of rear suspension, resulting in loss of control, which could result in an accident.
1984 Mack Mack; 1985 Mack Mack; 1986 Mack Mack; 1987 Mack Mack; 1988 Mack Mack; 1989 Mack Mack
Component: Suspension:rear:springs:leaf Spring Assembly:u-bolt, Leaf Spring To Axle
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 18
An incorrect 3/4 inch bolt was installed on rt/rs 450 suspension.
Retrofit chassis with 1 inch bolts.
System: suspension. Vehicle description: heavy duty trucks built with hendrickson rt/rs 450suspension.
Date Owners notified by Manufacturer: Aug 23, 1989
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