MACK FS 1974: WHEELS:LUGS/NUTS/BOLTS/STUDS

General Information

NHTSA Campaign ID Number: 74V228000

Make Model Year
MACK FS 1974
Date Owners Notified Date Received by ODI Date Added to Database
1975-04-14 1974-11-22 1979-10-12

Manufacturers Involved: Mack Trucks, Inc.

Component: WHEELS:LUGS/NUTS/BOLTS/STUDS

Potential Number Of Units Affected: 654

Report Initiator: MFR MFR Report

Notes

MACK CAMPAIGN NO 56.MODEL WITH SWS56, SWS57, SWS76 SERIES BOGIES, ALUMINUMHUBS AND DISC REAR WHEELS.BUILT 7/15 74 THRU 11/14 74.POSSIBILITY THATINCORRECT STUDS WERE USED TO ATTACH DISC REAR WHEELS TO ALUMINUM HUBS.IF THISOCCURS, THE STUDS WILL LOOSEN AND RESULT IN FAILURE OF THE HUB,DRUM OR WHEELAND COULD LEAD TO SEPARATION OF THE REAR DISC WHEEL FROM THE CHASSIS.'CORRECTBY INSPECTING AND INSTALLING PROPER STUDS WHERE NECESSARY'.