Ok guys, I'll try to describe this the best I can so that you can help my diagnose the problem.
I know this is coming from the front axle/driveshaft area and is only present when the Jeep is in motion. It is a knocking sound that is very noticeable at about 30-35 mph and very faint at any other mph. When you turn the steering wheel the sound goes away completely but returns when the wheel is straightened out.
I'm thinking it's either the u-joint on the driveshaft or that possibly the pinion nut needs to be tightened.
Does anyone have any suggestions on what else I should be checking?
Thanks in advance.