front end alignment specs... - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > OEM Issues

OEM Issues Original Equipment Repairs and/or Problems

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  #1  
Old 06-04-2008, 12:15 AM
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front end alignment specs...

has a front end alignment and here are the specs.


----------left front----------------------right front
camber before--0.49x.....................before -0.64x
after----0.51x....................after- -0.66x

toe before -0.20.........................before0.06
after 0.04..........................after 0.02

i dont understand this spec sheet but was it bad before alignment? it rides so much better now.
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  #2  
Old 06-04-2008, 11:50 AM
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what did the tires look like?
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  #3  
Old 06-04-2008, 12:04 PM
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Doesn't really look like they actually touched the camber, they did however adjust the toe-in. You're toe was a little out of spec prior, which would cause the tires to drag and wear quicker than they should. Afterwards, you have a slight toe-out condition, which tends to aid turning or makes the vehicle more agreeable to turns. Adjusting the toe will sometimes cause a very slight difference in camber/caster, due to the angle of the tires with the wheel centered.......they basically gave you a toe alignment, but the camber was well within spec to begin with.

What you didn't provide is the caster numbers before and after, while which do not usually cause tire wear, can result in a drift or pull condition. Your camber is set that you'll have a slight drift to the right, not much by a very slight amount. Hopefully the tech left more caster on the right side than the left to more than compensate and setup a slight left drift for road crown. (Usually they'll give the passenger side more caster to allow it to creep up the crown just a bit).
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Old 06-04-2008, 06:19 PM
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Quote:
Originally Posted by rbarrios View Post
what did the tires look like?
really worn on the edges.

caster specs
LF......before-3.86.............after-3.86
RF......before-4.35.............after-4.35
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  #5  
Old 06-05-2008, 11:35 AM
Midwest Kid Midwest Kid is offline
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Specs as Follows.. (to the best of knowledge anyhow)

FRONT Caster Min. 3 to 4 Max
Chamber -1 to 0


Toe -.05 to .15

The total of Toe In\Out shouldnt be less than -.10 and more than .30 apart from left and right.
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