It has the new ZF 9.25 rear.
Your part # that you posted will NOT fits.
Your part # fits the following vehicles

This product fits 1648 vehicle variants.
Chrysler: 6 models, 39 variants between 1997 and 2013.
Dodge: 14 models, 1576 variants between 1984 and 2013.
Eagle: 1 models, 20 variants between 1997 and 1998.
Jeep: 2 models, 13 variants between 2008 and 2009.

For your Ram You need part # 68053299AG.
Matt