If you are in 4x4 and are turning tight and you are feeling a jumping or jerking feeling than more than likely it is from the front tires pulling one direction as the rear tires are still trying to push straight. Try not turning as sharp to eliminate it.
Yup, all stock. Sound/feeling occurs on and off road. Sounds like the last few posters pegged it tho. Thanks guys. I figured it was normal but im a real nitpicker with my truck and like everything perfect so thanks for sorting it out for me.