Hubby and I just bought a 92 Bronco 4x4. Problem is everytime you hit the brakes it shakes and vibrates till your teeth chatter. Both the owner and my brother-in-law seem to think it's the new tires because they r big and beefy. I want to know what you all think. Can tires cause this much shaking?

to me it sounds like you got bad rotors/brake pads. it's worth to take a look at them.. good luck

You probably have warped brake rotors IMO