GMC Envoy, 120,000km
It had ben pretty quiet before we heard "boom","boom" noise while driving.
I sent it to mechanic to check the noise, a shop told me that the noise came from ball joints problem and sway bar links problem, another shop said it was rear shock problem, another said it was rear wheel bearing problem, the other said it was front wheel bearing problem.

Finally we had mechanic replaced the right front wheel bearing, there is no that noise now!
Please look at the video,it shows what happened to my Envoy and what sounds like while driving before and after replacing right front wheel bearing.