Ring & Pinion Kits 2003-2013 Ram AAM 925

AAM changed the differential after the 2006 model year. 2003-2006 gear sets are not interchangeable with those found in 2007 or later axles. AAM is no longer producing the early production gear sets, but you can use a 2007-up gear set in your 2003-2006 axle if you ALSO replace your old differential with the 2007-2013.5 diff. We do have the later gear sets available from the AAM in 3-7 days depending upon the ratio. Available ratios are 3.42, 3.73, 4.10, and 4.56.