My front end shakes when I apply my brakes at high speed. Why?

Generally , that is the most common sign that the front rotors are warped. Depending on several factors they can either be resurfaced or replaced , to eliminate the vibration. Common causes are overheating of rotors due to hard/extended braking (long applications down hills/mountains), mismatched pad/rotor materials and one I find HIGHLY OVERLOOKED , --improper lug nut torque!! Talk with your mechanic for your best option due to your specific conditions.

i would come by so we can drive the vehicle brake rotors do warp and can cause this problem. we do a free brake inspection.