On my 3rd set of front rotors within 6k miles and I still can not fix the brake shimmy, same thing every time. After a fresh set of front rotors all is good until about 1500 miles later and the shaking returns under braking. Most recent set of front rotors I put on along with a front caliper rebuild. Pistons, seals, guide pins, bushings and bled all around. I know it’s the brakes because the hotter the rotors get (constant braking) the worse the shaking gets it’s very frustrating and I have no clue why. Front suspension checks out ok too.