Steering wobble after Q45 brake upgrade!

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Viet-Tam
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I just did the q45 brake upgrade. Now my steering wheel wobbles, it did not have this problem before the upgrade. I have new rotors and pads what could be causing this?


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Razi
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Does it wobble only if you apply the brakes?

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kauaiboy25
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because if not, it could be alignment or wheel bearings etc..

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Viet-Tam
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It only does it while driving. It seems to work fine when i apply the brakes.

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drewce
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seems like warped rotors but could be wrong.

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Razi
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Have you double checked and retorqued your bolts?

midnightouge
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Are you 4lug or 5lug?If you are 4lug, who re drilled your rotors?That could be the cause of the problem.

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Viet-Tam
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The rotors are brand new.
drewce wrote:seems like warped rotors but could be wrong.

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Viet-Tam
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I have a 4 lug, got it drilled at a machine shop.
midnightouge wrote:Are you 4lug or 5lug?If you are 4lug, who re drilled your rotors?That could be the cause of the problem.

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benarovi561
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Viet-Tam wrote:I have a 4 lug, got it drilled at a machine shop.
thats why. u cant just drill a 1/2 inch bit in it. if u do, there will be too much play in the holes and the wheel studs. so s*** happens, go 5 lug its easy as f***.

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bersh240
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eh mine does it. steering wheel vibrates like crazy. i find that over 110kh/hr it goes away. whats that 70 ish?i ordered mine redrilled from 88rotors or smthinits hard to get 100 percent perfectly redrilled rotors.

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Legion76
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Even if a rotor is brand new, it could be warped. It depends on how it was stored. I've had to turn brand new rotors and drums before. I had a bad vibration in my truck after replacing both rear drums because they were not completely round.

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benarovi561
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Legion76 wrote:Even if a rotor is brand new, it could be warped. It depends on how it was stored. I've had to turn brand new rotors and drums before. I had a bad vibration in my truck after replacing both rear drums because they were not completely round.
cool Story Bro!

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TheRealNap0le0n
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benarovi561 wrote: thats why. u cant just drill a 1/2 inch bit in it. if u do, there will be too much play in the holes and the wheel studs. so s*** happens, go 5 lug its easy as f***.
it wont matter because the rotor is still hub centric. as long as the center hole wasnt modified it shouldnt wobble.


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P_856
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TheRealNap0le0n wrote:it wont matter because the rotor is still hub centric. as long as the center hole wasnt modified it shouldnt wobble.
thats what i was thinking too also one bolt she be the original size and the other 3 might be bigger, kinda got me worried here im about to redrill my rotors for 4 lug this weekend

Future_gohan
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P_856 wrote:
thats what i was thinking too also one bolt she be the original size and the other 3 might be bigger, kinda got me worried here im about to redrill my rotors for 4 lug this weekend
I re drilled my rotors 5lug, they were 4lug, and it was fine, the holes for the lug nuts are suppose to be a tad bigger, drill them then use a step drill to make the holes the right size.

As for the rotors, probably warped bro. Or you have something loose.

I have brand new brakes and rotors on my z32, and i have horrid steering wobble, i'm going to get the turned next week and i'm positive it'll fix the problem.


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