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Old 01-12-2007, 10:09 AM   #1
Scooby Specialist
Member#: 109567
Join Date: Mar 2006
Location: Qatar
Question just installed 5mm wheel spacer, now vibration?

few mintes ago, I intalled TCS 5mm wheel spacer on my 04 impreza rs...... there was no problems, but now there is a notesable vibration @ 70mph do all wheel spacer cause vibaration, or did I installed it in a wrong way ??

my car has 17x8.0 rims, 225/45 tires, and offset is 48
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Old 01-12-2007, 10:23 AM   #2
Scooby Specialist
Member#: 72031
Join Date: Oct 2004
Chapter/Region: NWIC
Location: poor grammar fuels my anger
2017 SS 1LE


what did you torque your lugs to? 5mm is pushing it on stock studs.
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Old 01-12-2007, 10:31 AM   #3
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Join Date: Aug 2006
Location: Bloomfield Michigan
2004 WRX STI


Usually there is vibration. It takes a very carefull installation of those to avoid vibration.

The thinner spacers do not have enough metal on them to have hubcentrics. A hubcentric wheel has a center hole the same size (1/2 mm bigger really) than the hub, and that's what centers the wheel on the hub,...not the lug nuts.

The thicker spacers (10mm and up) will have a hole in the midle the correct size to fit the hub,...and a lip stiking out on the other side to go into the wheel, (so the wheel will still be centered). There isn't enough metal on a 5mm one to clear the lip of the cars' hub, so they can't machine-in the protruding lip on the wheel side.

If the hubs' lip sticks out far enough past the spacer,...you can try to center the wheel on it still,...but most wheels have a small taper cut into their certral hole to make it easier to get the wheel on,...so the whel won't fit snugly on the hub.

Best to go 10mm (or whatever the thinnest spacer that is hubcentric. You also need to make sure that the hub center holes on the spacers are the correct diameter for your car.

If you can't do any of these things,...you'll just have to try to super carefully install the wheels. You'll want to install and torque the wheels while they're still in the air. What you probably did was put the wheels on and partly tightened the nuts,...then lowered the car down onto the ground a bit to torque them fully. That would have forced the wheel slightly off center,..and hence the vibration.

With this method you will need to cary arounds a torque wrench whenever you dgo somewhere where your wheels might come off (such as a tire store etc.)
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Old 01-12-2007, 01:00 PM   #4
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Join Date: May 2003
2003 WRX


Vibration or not, you need longer studs to be safe.
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Old 01-12-2007, 04:00 PM   #5
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Join Date: Jul 2005

can you post a link to these spacers?

ive gone through ichibas crap spacers, H&R spacers and now have a custom set... i may be able to shed some light if i can see pics of them
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