Preliminary Evaluation · Closed
Rear Differential Failure
Manufacturer: Chrysler (FCA US, LLC)
This investigation led to a recall
NHTSA links this probe to recall campaign 13V038000.
Read the recall: what is defective and the free fix →What NHTSA is examining
In a letter dated October 2, 2012, Chrysler Group LLC (Chrysler) submitted a Defect Information Report (DIR) to NHTSA identifying a safety defect in approximately 48,058 vehicles built with an axle pinion nut that can loosen, which could result in lock-up of the rear axle and/or separation of the rear drive shaft from the rear axle (NHTSA Recall No. 12V-474).The vehicles involved in this recall are model year (MY) 2009 and MY 2010 Dodge Ram 1500 (46,677) and Dodge Dakota (1,381) vehicles manufactured between July 1, 2009 and November 30, 2009 built with 9.25? rear axles built at Chrysler?s Detroit Axle Assembly Plant.Chrysler stated it determined during this time frame there were instances of 9.25? axles built with rear axle pinion nuts that were missing the adhesive patch.The remedy for these vehicles is to install a pinion nut retainer.In a review of data in its complaint database and data submitted by Chrysler, the Office of Defects Investigation (ODI) identified 194 reports (including 3 crash reports) of rear axle lock up and/or drive shaft separation outside of the scope of recall 12V-474.In a letter dated February 5, 2013, Chrysler submitted a second DIR to NHTSA identifying another safety defect in approximately 278,150 vehicles built with 9.25? rear axles and outside of the scope of recall 12V-474 that could also result in lock-up of the rear axle and/or rear drive separation (NHTSARecall No. 13V-038).Chrysler stated that analysis of field return parts from this…
Vehicles under investigation
Source: NHTSA Office of Defects Investigation records, updated daily. An investigation is not a determination that a defect exists; many probes close without a recall.