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New Rear brake kit vibrating[HELP!]

Vanyukchan

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hello guys,
I had a 17EB before, and I replaced the 380mm rear brake disc. When braking, there is a vibration from the rear of the vehicle, and it is felt through the chassis and seats. Later, I replaced it with the original one. I defined this vibrating was a brake disc problem.
But recently, I replaced another brand new Wilwood Shelby 4 Piston Rear Big Brake Kit to my 19GT , and after driving 500 kilometers, when I braking the same vibration appeared again! !!
This is so frustrating!!!does anyone know what I should check?
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JustSomeGuy

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Are you doing anything to break in the new rotors, or just installing them and driving like normal? Depending on the vibration it might be a warped rotor from an improper break in?
 
 




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