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Old Apr 30, 2009 | 08:02 PM
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Default alignment

took the 2008 into the dealer today-

asked for an alignment- mentioned slight cupping on edges of front tires- none on rear-

got a call telling me the tech said I needed new tires to properly align-

told them

12912 miles-

took a better look at them when I got it home- looks to me like I have 50 % of tread life left-

is the economy so depressed a tech would try to pull a fast one-
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Old Apr 30, 2009 | 08:05 PM
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Who knows, maybe standard procedure for them. Try to find an independent alignment shop that preferably knows Vettes or at least knows how to align high end cars.
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Old Apr 30, 2009 | 08:27 PM
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This is a fairly common problem with the front tires. I didn't notice mine at first, but when I did, I took care and ran them until they were worn too much on the inside and then bought new ones with an alignment. It seems like it might be a waste of money to align a car with such a problem but I don't know.

All four of my tires were out of alignment to different degrees. I was surprised at just how far out they were but I had them set up for longer tread life. I have a Z51 and did a couple of track days before but I don't think the new settings will affect the handling too much.
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Old Apr 30, 2009 | 09:11 PM
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some alignment techs can be lazy or just dickh**ds. I use to work with a few. For real a really worn tire could sit uneven andcause the camber to be off for that tire but thats such an extreme case i havent seen.
Usually its from a tech who wnats to get out early or for lunch. good luck, paul
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Old May 1, 2009 | 08:27 AM
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I've heard that a lot of people will come back to the alignment shop and complain that the alignment wasnt done properly because the tire still look worn even with the alignment set up properly. All the shop needs to do is to note on the repair order that the tires were worn before the alignment.
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Old May 1, 2009 | 09:05 AM
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got new tires and allignment at firestone....I noted they alligned the car first with the old tires on. drives great with the new wide oval runflats..
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Old May 1, 2009 | 09:23 AM
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I used to do alignments. You align the wheel, not the tire!
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Old May 1, 2009 | 10:25 AM
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Originally Posted by porjohn
I used to do alignments. You align the wheel, not the tire!
That's how I remember it.


oz
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Old May 2, 2009 | 01:19 AM
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have the camber set a "0" to prevent the cupping or excess wear on the inside of the front tires.
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Old May 2, 2009 | 01:33 AM
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Originally Posted by porjohn
I used to do alignments. You align the wheel, not the tire!
Isn't this two different things? a wheel alignment and wheel balancing?
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Old May 2, 2009 | 01:34 AM
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Originally Posted by 2bubbas
took the 2008 into the dealer today-

asked for an alignment- mentioned slight cupping on edges of front tires- none on rear-

got a call telling me the tech said I needed new tires to properly align-

told them

12912 miles-

took a better look at them when I got it home- looks to me like I have 50 % of tread life left-

is the economy so depressed a tech would try to pull a fast one-
It's called the "Corvette Tax".
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Old May 2, 2009 | 01:35 AM
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Originally Posted by porjohn
I used to do alignments. You align the wheel, not the tire!
I just had a 4 wheel alignment done prior to installing 4 Michelin PS2's ZP tires. They attached their alignment device to all four rims and took the readings. After 16,000 miles my alignment was within factory specs, no adjustment needed. The Supercar tires wore evenly, but lacked traction when accelerating hard. The Michelin's bite nicely and ride much smoother
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Old May 2, 2009 | 01:38 AM
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Somewhere in here is another topic about alignment and it says don't use the factory specs with the + or - settings.
I don't understand this.

http://forums.corvetteforum.com/c6-c...ering-why.html
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Old May 2, 2009 | 02:33 PM
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Along the same lines ..... I changed from stock wheels to aftermarket wheels and new Kumho Ecsta tires, stock sizes. New wheels are front - 18x9.5 with stock offset. Rear is 19x10 with +65 offset vs stock offset which is +79. The stock wheels with stock tires wore PERFECTLY with more than 20K miles. Is there any change I should make to the alignment or should I be OK with it as is?
The whole alignment thing baffles me, but I kept the #'s that folks say get best wear. I must be close to that from the factory since I had good luck.
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Old May 2, 2009 | 02:40 PM
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Originally Posted by LS WON
Somewhere in here is another topic about alignment and it says don't use the factory specs with the + or - settings.
I don't understand this.

http://forums.corvetteforum.com/c6-c...ering-why.html

Example...

C6 Camber factory setting is -0.45 +/- .60

That means -1.05 to +0.25 is totally acceptable for camber.

When you get aligned, you say make my camber -0.05 (or whatever you designate) +/- 0.0 If it's not -0.05 then he needs to adjust it again until it reads -0.05.

Does that explain the no +/- crap?

Elmer
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Old May 2, 2009 | 02:42 PM
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Originally Posted by LS WON
Originally Posted by porjohn
I used to do alignments. You align the wheel, not the tire!
Isn't this two different things? a wheel alignment and wheel balancing?
What he means is that when you do an alignment, the reference plane for adjustments is the wheel surface, not the tire.
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Old May 2, 2009 | 11:25 PM
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QUOTE=eboggs_jkvl;1569935259]Example...

C6 Camber factory setting is -0.45 +/- .60

That means -1.05 to +0.25 is totally acceptable for camber.

When you get aligned, you say make my camber -0.05 (or whatever you designate) +/- 0.0 If it's not -0.05 then he needs to adjust it again until it reads -0.05.

Does that explain the no +/- crap?

Elmer[/QUOTE]

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Old May 2, 2009 | 11:25 PM
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Originally Posted by torquetube
What he means is that when you do an alignment, the reference plane for adjustments is the wheel surface, not the tire.
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Old May 3, 2009 | 08:00 AM
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Originally Posted by 2bubbas
...is the economy so depressed a tech would try to pull a fast one-
It doesn't have as much to do with the economy as just congenitally dishonest dealership employees. That is just another reason not to go to a dealership for anything unless you absolutely have to. If you have a tire problem, go to a place that specializes in tires.

With a proper alignment the cupping will tend to go away over time. As mentioned above, you could align a car with no tires (yes, sitting on the ground on the rims) because the alignment is of the wheel and not the tire.
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Old May 3, 2009 | 02:14 PM
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Originally Posted by 2bubbas
took the 2008 into the dealer today-

asked for an alignment- mentioned slight cupping on edges of front tires- none on rear-

got a call telling me the tech said I needed new tires to properly align-

told them

12912 miles-

took a better look at them when I got it home- looks to me like I have 50 % of tread life left-

is the economy so depressed a tech would try to pull a fast one-
Are we talking about real "cupping" or just wear? Cupping is a symptom of shot dampers. I suspect we're just talking about wear.
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