does this car have u joints? on 2006 Mazda Tribute

I have a rumble, which sounds like the wheel bearing problem described on this website, but a friend who is a mechanic said it might be a frozen u joint--but I cannot find any reference to u joints on this make/model?

Asked by for the 2006 Mazda Tribute
The 4 wheel drive model has U Joints, But its probably a wheel bearing thats making the rumble

You can get this estimate here put in your Mazda's info and choose wheel bearing and you can find a shop here