I have was stuck in traffic from the shop to home and couldn't get the car up to 65+. Tomorrow morning I'll update.

but if I were to make a bet it would be that it does fix it.

Otherwise the shop wants me to get the tires balanced. (no cost)

I didn't know you weren't happy with your spacers? I'm dying to have one, but with those vibrations issues :shakes head:. I'm in the process of buying a new set of hubcentric wheels to eliminate the gaps. Pretty soon hopefully with some drops :tup:

Well, no change after the alignment even though some numbers were pretty off spec.

Today I'll take it to get balanced to see if that fixes the wheel and gas pedal vibration after 65mph.

When the steering whee vibrates after a spacer install, the issue isn't the alignment or the balance. The problem is the spacer install.

:iagree:

yea something's not jiving, i will say that i've heard (slightly) warped spacers can cause issues

Even if the balance helps a bit, its only masking the original problem. Unless of course, there was a balance problem to begin with. I believe in this case there wasn't. Right?

at least he can rule out the wheel/tires being okay i guess.

Might as well change the oil at this point. Just to make sure.

Well, just returned from a nice long ride following the balancing. No noticable vibration and I was having fun again driving, not noticing the speedometer!
The front left was 1 ounce off.
I'm back to being happy.
If doing the alignment and balancing is masking the problem, what could be the issues to look for after the next 1000 miles?
If the vibration comes back, and today's drive was just a dream, would removing the front spacers and going back to stock in the front, keeping the 20mm in the rear be the next step in troubleshooting?

what the hell is going on with you guys getting vibrations from spacers, not just the OP but others. If they have hubcentric rings or built in rings you should get nothing of the sort. I ran rear spacers of 3 different sizes, twice with no hubcentric rings and I never ever got vibrations. Adding spacers would not cause your Z to be out of alignment either.

You dont really need hubcentric rings unless you plan on going over 120 mph on a regular basis, its just recommended you have them to be safe...and I do recommend them.

Zerafian - do you have front spacers too?

so the weight fell off while they were doing the install? perhaps they bumped the weight on your caliper when they removed the wheel from the car.

anyway good to hear your wheels are balanced and vibration is fixed. :tup:
that's not a mask, should be permanent then.

The weights on my race wheels come off all the time. Damn sticky back material on those low profile weights starts to melt at high temperatures.

dang.... :eekdance: