If its audible once its up to speed, and is like a wum-wum wum or just a loud humming (sort of making the wheel revolutions louder), its probably a wheel bearing with that mileage and age.

As far as I know when CV's go bad they start clicking and stuff. Personally, I have a 2003 with 66k miles and I have bad front wheel bearings believe it or not, my indy and I were just talking and he said he heard it when road testing my car so my next round of maintenance will be taking care of the CV's and the wheel bearings.

I'd definitely get a good indy to look at it if I were you, just to be sure.

As far as the axles go, if grease has leaked out of the boot and splattered under the car, personally, I would NOT re-boot the axles, I would replace them. You never know what grit, dirt, etc, has gotten into the CV joints. My personaly opinion is you replace the boots at first sign of cracking, but when grease leaks out, replace the joint to avoid any potential problems in the future.


Other than that, the truck looks beautiful. Do you know what recent maintenance has been done? I'd give a once over on the cooling system, make sure belts and tensioners are good, and do the differentials, transfer case fluid, coolant flush, etc just to know that your fluids are fresh.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards