Power Train Power Train:Automatic Transmission Power Train:Axle Assembly Power Train:Driveline Power Train:Driveline:Differential Unit Power Train:Driveline:Driveshaft Power Train:Transfer Case (4-Wheel Drive)
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 vehicle population, undersized pinion splines were found as the likely factor contributing to the loosening of the pinion nut.The vehicles involved in this recall are:266,091 MY 2009?2012 Dodge Ram 1500 vehicles manufactured from 2/28/09 through 6/30/09 and 12/1/09 through 10/20/11 (including 183,421 MY 2009-2010 subject vehicles); 8,475 MY 2009?2010 Dodge Dakota vehicles manufactured from 2/18/07 through 6/30/09 and 12/1/09 through 7/9/10; 2,346 MY 2009 Chrysler Aspen vehicles manufactured from 1/19/07 through 12/18/08; and 1,238 MY 2009 Dodge Durango vehicles manufactured from 1/17/07 through 12/18/08.The remedy for these vehicles is the same as for 12V-474.The failure counts in this resume are for the subject MY 2009-2010 Dodge Ram 1500 vehicles only.The recalled vehicle counts are based on current estimates from Chrysler and may differ from estimates in the original DIR's.This Preliminary Evaluation is closed.The ODI report cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10489593,10489091,10488952,10485174,10485096,10484596,10484490,10483394,10483370,10482853,10482816,10482438,10479806,10479352,10478724,10477460,10477354,10476923,10476691,10475939,10475241,10475158,10473147,10472488,10470655,10470516,10470231,10470152,10469969,10469548,10469435,10468759,10468024,10467819,10467805,10467683,10467196,10466630,10464240,10448778,10445208,10443542,10439902,10375394,10362531,10353440
