I had sent a previous threat out about Front Tire Humming, I think I have finally found the problem.
I checked my front differantial oil today because I had changed the oil about a month and a half ago, just to make certain it was still topped off, and because I wanted to see if my Front Hum, had anything to do with it.
Well as I topped off the oil, which was full, the oil started draining from the fill hole right away. The oil was dark in colour, I'm going to assume this is meaning it's burnt?? And I'll also assume the "Humming Noise" has been a bearing from inside the differantial that was slowly malfunctioning??
Does all of this make sense, or am I just still in search of the Humming??
If it is a Differantial bearing that has gone, what would the approx. cost be roughly to have a Dealership look at it. And....by chance was there any recalls on this item??

 

DIAGNOSIS AND TESTING - AXLE

GEAR NOISE
Axle gear noise can be caused by insufficient lubricant,
incorrect backlash, tooth contact, worn/damaged
gears or the carrier housing not having the proper
offset and squareness.
Gear noise usually happens at a specific speed
range. The noise can also occur during a specific type
of driving condition. These conditions are acceleration,
deceleration, coast, or constant load.
When road testing, first warm-up the axle fluid by
driving the vehicle at least 5 miles and then accelerate
the vehicle to the speed range where the noise is
the greatest. Shift out-of-gear and coast through the
peak-noise range. If the noise stops or changes
greatly:
† Check for insufficient lubricant.
† Incorrect ring gear backlash.
† Gear damage.
Differential side gears and pinions can be checked
by turning the vehicle. They usually do not cause
noise during straight-ahead driving when the gears
are unloaded. The side gears are loaded during vehicle
turns. A worn pinion mate shaft can also cause a
snapping or a knocking noise.

BEARING NOISE
The axle shaft, differential and pinion bearings can
all produce noise when worn or damaged. Bearing
noise can be either a whining, or a growling sound.
Pinion bearings have a constant-pitch noise. This
noise changes only with vehicle speed. Pinion bearing
noise will be higher pitched because it rotates at a
faster rate. Drive the vehicle and load the differential.
If bearing noise occurs, the rear pinion bearing
is the source of the noise. If the bearing noise is
heard during a coast, the front pinion bearing is the
source.
Worn or damaged differential bearings usually produce
a low pitch noise. Differential bearing noise is
similar to pinion bearing noise. The pitch of differential
bearing noise is also constant and varies only
with vehicle speed.
Axle shaft bearings produce noise and vibration
when worn or damaged. The noise generally changes
when the bearings are loaded. Road test the vehicle.
Turn the vehicle sharply to the left and to the right.
This will load the bearings and change the noise
level. Where axle bearing damage is slight, the noise
is usually not noticeable at speeds above 30 mph.

You can expect the dealership to charge about $30,000 to look at it. And than give you a laundry list of other, totally unrelated things that "have to get done" so you get worried about the safety of your truck.
If your gonna take it some place to have it looked at, don't take it to the dealership. But whatever you do, make sure whoever 'diagnosis' it either shows you why they say something it bad, or at least give you a very good text-book explination of what exactly is going on. (Obviously, since not everything can be seen before taking it apart) Don't just blindly give your money away, make sure you understand what their going to do and what they will be replacing, and knowing why they came to that conclusion.

Someone who knows something about drivelines should post soon, haha.

 

pop your inspection plate off (the diff cover) and look for anything out of the ordinary. go by what dodge rules gave ya above me. thats all you need to know to find out about axle and bearing problems

 

First of all "Thanks",
I'm going out for a drive today, and I'll go through your list. I have already done some of those tests. Everything so far has not changed the whine/pitch at all. I've put it in 4X4 low to load the front end, still no change.
Anyways I'll go out and run through some of those tests again, doesn't hurt to keep trying!