My 2008 Jeep Grand Cherokee is noisy at speed. I have changed the front and rear wheel bearings front with no result. Could it be from the transmission, the rear axle, or front axle? Do you have any ideas?
It could be from any of those, it could also be the tyres if they’re aggressive off-road tyres. Your best course of action is to have a mechanic ride with you to observe first hand the noise that concerns you.