WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Removing/Installing Crossmember
Courtesy of CHRYSLER GROUP, LLC
Install the crossmember (3).
Install the bolts (1) and nuts (2). Tighten the nuts to 102 N.m (75 ft. lbs.).