I just installed a set of summit racing brand cross drilled and slotted rotors with a set of duralast ceramic brake pads. now I notice a slight vibration in the steering wheel coming off the highway?? I bedded the brakes as directed and they stop great!! Anyone know what could be the problem?? I hate to think that Summit sold me a warped rotor??

 

Yikes you are going to get alot of slack for buying Summit rotors. They may have shipped you a warped rotor or likely in the bedding process you warped one or both. See how it feels, but you may need to buy higher quailty rotors.

Rotora drilled and slotted is what I am running, about $400 including pads but brakes are a good investment in my book.

 

Did you clean the rust off the hubs before you put the rotors on?

 

There were no rust on the rotors when I installed them. I cleaned them accordingly and bedded the brakes as instructed. As for summits quality?? I have never bought a bad part that is summit brand and they stand behind their parts!! I spoke with someone there and was told to put 500 miles on the rotors and if the problem continues they will replace the rotors and reimburse the installation costs to me!!

 

Just to clarify.. You get vibration at highway speeds (60-70mph)? Is it a vibration that definitely wasn't there before?

If so.. I still wouldn't say the rotors unless they're noticeably damaged / warped but you say they're brand new. Could be driveshaft / CV joint / hub bearing.. could also be abs sensor.. engine mount.. tires.. Any other details?

 

The vibration definitly wasn't there before and is only slight when I brake coming off the expressway!! And only if I brake hard!!

 

hmm.. I have to say pads on this one.. try getting an even bed on the rotor.. I suspect that the pads have dug in / bedded on a portion of the rotor but not around the whole rotor so it's grabbing more of the rotor on that part then the other.. so it's like grab-slip-grab-slip which could be causing it to vibrate. Try to do some hard firm stops like 1/2 dozen or so from 60 - 10 and from 45 - 5. I would first inspect the pads and then try to rebed them.

 

I will give that a try and let you know if it works!! Thanks for the advice!!