Could be a few things. Jack the front of the vehicle up and try to wiggle the wheel from the 12/6 o'clock positions and again at the 9/3 o'clock positions... 12/6 is ball joints, 9/3 is tie-rods. Then again, could also be somewhat normal... IIRC, you can adjust the steering box to help tighten it up a bit... I am new to the SUV/truck thing, so don't take my word on that...
+2 on that.... but I'm goin straight to the inner and outer tie rods for your inch of movement in the steering wheel
275/45/20s+30X9.5's for the winter, Bilstiens, Moog ball joints, Personal made front grill, Custom made ram air, Tornado, Fuel Boss, Champion spark plugs, Accel ignition coil, new GMB water pump, 180 degree Jet T-stat,rebuilt trans with shift kit, PVC enhancer!
After replacing several front end components, it was finally the steering gear box replacement that made the biggest improvement. I have also heard that the 1st generation Durangos all had a similar characteristic.
1998 Durango SLT 4X4 5.9L
HD Transfer Case, tow package, 3.92:1 LSD,TBS, K&N Filter, High Flow Exhaust, HyperTech Tuned for 87 Octane, General Grabber HTS P255/70R 16", Super Spring for Towing, Westin Push Bar (for Fords & Chevys).