NHTSA Campaign Id 86V005000; Date: Jan. 14, 1986
1985 Mack Mack; 1986 Mack Mack
Component: Power Train:axle Assembly:axle Shaft
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 484
Incorrect inner wheel bearings were installed in the rear axles which wears a groove in the spindle due to a poor fit. Consequence of defect: a deep groove could cause the axle housing to break and result in a vehicle crash without prior warning.
Replace inner wheel bearing with correct bearing. Also, if a groove is present, remove the groove and assure that no cracks are present. Replace housing if cracked.
System: rear axle inner bearing. Vehicle description: heavy duty trucks equipped with mack ss440c or sw440c rear axle.
Date Owners notified by Manufacturer: Feb 3, 1986
Also see: