Does the wheel jerk while turning, even just slightly? Part-time 4WD is not meant for use on paved roads due to the way it functions. In part-time, when you turn, the system senses wheel slippage due to the dynamics of a turn and attempts to engage the 4WD during the turn - this is why you get a jerky feeling.
Pavement = 2WD or Full-Time 4WD
Off road = Part-Time 4WD and 4WD Low
93 ZJ 4.0, Rancho 9000's, Rancho Stabilizer, Splitfire plugs, BFG A/T 235/75/15's
More to come...