Check out the mopar class IV hitch receiver. Works for Gen. 4 rams and I belive all gen 3 as well. Relies on structural components in bumper already and bolt into them. It only cost $120 or so and it's easy to install yourself. I did a how to a couple months back. Check it out here:
Mods: Thule Xsporter 422XT bed rack, Underrail Rhinolining, MOPAR class IV Hitch, DIY CAI, Aero Turbine 3030.
Future Mods/Wishlist: Tuner, Daystar Comfort Ride 1.5" Leveling kit, Nerf Bars, Police style push bumper with light guards, KC or Thule trail lights, HID projector lights.