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Zimmerman Cross Drilled Question 850

posted by  someone claiming to be Kyle Dorr on  Fri Apr 23 06:33 CST 2004 [RELATED]

Question on brake rotors...

Anyone out there try the Zimmerman cross drilled rotors? Is it worth the extra $22 per disc? Any warping problems? Otherwise, I'm just going to get the regular Zimmermans when it's time. My current brakes seem warped (lots of feedback in the steering wheel). I fixed it a little by taking the lugs off and re-torquing them, but the warp seems to be resurfacing. The current brakke rotors have ~70K miles on them. Also, I think one of the e-brakes is hosed. Fun fun.

-Kyle







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    Zimmerman Cross Drilled Question 850

    posted by  someone claiming to be Stormin Norman on  Fri Apr 23 08:37 CST 2004 [RELATED]

    I love my Zimmerman cross drilled rotors. I know its wrong, but I'm weak. No warps or squeals, lotsa stopping power.








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    Zimmerman Cross Drilled Question 850

    posted by  vitor on  Fri Apr 23 06:59 CST 2004
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    last visit: Sat Dec 8 05:01 CST 2007
    [RELATED]

    Cross drilled Zimmermans are a little noisy.

    I have two sets of rotors for my 98 V70, cross drilled and non-cross drilled.
    I can only get about 6 months of use out of them before vibration, due to warping is an issue.

    I originally had the OEM, then I got Brembo, a year later I got cross drilled Zimmies and gave away the Brembo's, they got noisy (not squeaking, squealing or grinding, difficult to describe the noise of a warped rotor with vents).
    I purchased a second set with no vents and installed, they lasted 6 months and I resurfaced the cross drilled and re-installed about 2 months ago.
    I have the non-vented rotors resurfaced and on the shelf waiting for their turn.

    Before I get scalded, Yes, I do torque the wheels with a real torque.
    No, I don't remove half of the rotor thikness.
    Volvo rotors should not be turned? Do whatever works for you.







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