Change the brake rotors
brake rotors out of round
bpi
You have warped brake rotors. Replacement or machine work is required to stop that condition.
When applying the brakes; if you feel the car jumping it's usually the brake rotors need "turned". And, all depending on the age of the rotors and how much your OLD brake pads have scraped them, you might need to buy new rotors. So, my answer is TURN or REPLACE brake rotors. <end>
It can be easy to change the brake rotors. Lift the car, remove the tire, brake shoe and rotor, put on the new rotor, replace the brake shoe, tire and lower the car.
You can find information on different brake rotors in a few places. You can find this information in car magazines, car manuals, car books, your mechanic and on car oriented websites.
Although I am not terribly knowledgeable regarding car mechanics, I have done some research. A brake rotor is what actually works to stop your car when you step on the brake. This takes place when the brake pads squeeze against the rotors when braking.
warped rotors , brake
you most likely have warped brake rotors
pads
Changing brake rotors is pretty easy. One lifts the car, removes the tired, brake shoe and then the brake rotor. Next replace the brake rotor, put the brake shoe and tire back on the car and lower it back to the ground.