Turns out that all my groans and rumbles were generating from a bad vacuum line going to my right front Hub. SO essentially I was driving in 3 wheel drive or 2.5 wheel drive. I kept on thinking it was coming from the rear since it started right after I has work done on the diff but what must have happened is when the truck went up on the lift the tire dropped down far enough to extend the vacuum line and break it. So with a quick hose connector im back up and running noise free. Just thought I would throw this out there for anybody that may have a similiar issue down the line.

Thanks to everyone that offered up advice and tips from this site, saved me lots of money not taking it in to the dealer.

 

excellent find. something to keep in mind when jacking.

if you dont have the new type solenoid i would say replace it. real cheap insurance. i replaced mine and grinding went away.

just noticed you have an 04. i am sure you are old type.