Date: Fri, 25 Jul 2003 09:42:10 +0100
From: Grunff <>
Subject: Re: Vibration when braking?

Full spec wrote: > Sounds like you will need to replace front rotors and pads. These days the > rotors are designed to wear out in combination with the pads - so if your > car has done 60k to 80k miles (depending on driving style) and the rotors > are original, then it is highly likely that they need replacing. I'd be interested to know exactly how you've reached your conclusion about modern rotors being "designed to wear out in combination with the pads" - especially any documentation to that effect. AFAIK, modern rotors are made of the same steel rotors used to be made of 20 years ago. Pads have got slightly harder, but certainly not to the point of necessitating rotor replacement at 60k-80k. What's more, worn rotors won't cause vibration when braking; rotors which have warped will. Brand new rotors can warp just as easily as rotors which are worn to their minimum thickness. -- Grunff

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