When I get on the brakes semi-hard, my wheel whimmies in my hands. It also pulls to the right slightly. I recently put new rotors and pads on it, and I can't find a FAQ anywhere that covers it.

A mechanic told me that he believes its something in my steering system, but I'd figure I'd ask you guys to see if you'd know, being f-body experts and all.

Once it actually shook incredibly bad when I got in the brakes lightly to enter a curve in a road.

Any thoughts?