Braking steering vibration.
 

Hi. Hope someone may be able to help me. When applying the footbrake there is a terrible vibration. I have replaced both track rod end and one inner tie rod but problem is still there..
When going at a walking pace no vibration at all.
Any suggestions please.

most likely you have warped brake rotors. try jacking the car up and rotate the wheels by hand to see if you can feel the pads hitting a high spot. Its sometimes hard to tell if the issue is the front or the rear rotors.