Wheel Balance Problem

[tbradley222]

Set Up:

Velox 18 x 7.5 Wheels all aroundBrand new Falken 912 (225/40/18) Tires20mm PDM wheel spacers (front)25mm PDM wheel spacers (rear)

So:

I went and got my new tires mounted and balanced yesturday. Only to notice that my car is now shaking like a *****. Shakes at low speeds around 40km/h and 80km/h. I would not go over 80km/h because it was too bad. The shop I went to seemed to be reputable and the owner also owned an s13 with over $130k in parts alone and sits at around 550hp at the rear wheels. Anyways

The tires were supposibly balanced, but what I think happened is when they mounted them the wheel spacers might not have been centered correctly, screwing it up. Anybody have this problem in the past? Any idea's etc?

[tbradley222]

also we had it up on the hoist and you could see when the wheels were spun the slight "wooble" in a couple of the tires. The wheels do not seem warped in any way so I dont think it could be that and the tires are brand new. They have a wire feed on the sideway too.

[ca18tt1978]

I"m guessing your spacers are not bolt on how much of a spacer are you running .If your running more then a 15mm you should have bolt on or atleast have extended studs .Now with that said ,if you have it on a life why dont you just take off your wheels and see if the spacer isnt the problem .

[tbradley222]

I"m guessing your spacers are not bolt on how much of a spacer are you running .If your running more then a 15mm you should have bolt on or atleast have extended studs .Now with that said ,if you have it on a life why dont you just take off your wheels and see if the spacer isnt the problem .

Yea well its a combination of the spacer (20mm and 25mm on rear) and the studs. The studs were just spot welded into the back of the hub when I got it...and i just noticed it now as I just changed my tires. As soon as the wheels came off...those little spot welds fell right apart. Somebody did a ****ty and cheap job. The studs are just free flowing and are not the correct type for this application. I now know that I need to get extended studs, and I have heard of something alone the lines of a Hub Centric plate that sits on your wheel to make sure it is centered corrected.

Can you recommend an extended stud and this centric plate thing I keep hearing about?

Thanks guys