NHTSA Investigation RQ07003

FRONT WHEEL SEPARATION

ODI IS CLOSING THIS INVESTIGATION BASED ON DAIMLER TRUCK NORTH AMERICA 'S (DTNA) MARCH 19, 2008, DEFECT NOTIFICATION REPORT WHICH OUTLINES DTNA'S INTENTION TO CAMPAIGN 28,764 FREIGHTLINER, STERLING, AND FREIGHTLINER CUSTOM CHASSIS VEHICLES [EQUIPPED WITH EITHER ARVINMERITOR OR AXLE ALLIANCE COMPANY 6,000 - 8,000 POUND RATED FRONT AXLE ASSEMBLIES UTILIZING A FOUR PIECE SPINDLE NUT SET] MANUFACTURED BETWEEN JANUARY 26, 2000, AND MARCH 24, 2008.DTNA HAS PROPOSED PROVIDING A REMEDY FOR THE CURRENTLY INSTALLED FOUR PIECE SPINDLE NUT SYSTEMS WHICH MAY LEAD TO INCORRECT END PLAY, [BEARING] CONE SPIN, EXCESSIVE HEAT, DEGRADATION OF LUBRICATION, WEAR OF THE SPINDLE NUT [BACKFACE] AND BEARING JOURNAL, OIL CONTAMINATION WITH METAL SHAVINGS, AND PREMATURE BEARING FAILURE.CONTINUED OPERATION MAY LEAD TO A WHEEL SEPARATION.ODI HAS RELIEVED DTNA OF THE RESPONSIBILITY TO PROVIDE THE INFORMATION REQUESTED AS PART OF THIS RQ SO THAT DTNA COULD FOCUS THEIR EFFORTS ON INVESTIGATION OF THE WHEEL SEPARATION ISSUES AND PLANNING AND IMPLEMENTING A RESPONSIVE AND TIMELY FIELD ACTION (CAMPAIGN).

An investigation is a separate record from a recall and from a manufacturer communication. A manufacturer campaign to repair a safety defect or a failure to meet a federal safety standard.