Allignment Specs + IGBA forums - Chevy Impala SS Forum
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post #1 of 18 (permalink) Old 08-07-2004, 03:53 PM
V8killer
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Since IGBA forums dont work ( or dont exist anymore), the link the their tech page that had the allignment forums obviously doens't exist anymore either.

Does anyone have the specs from the IGBA site saved somewhere they can post here please?

Thank you.
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post #2 of 18 (permalink) Old 08-07-2004, 05:35 PM
9C1LT195
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</font><blockquote>code:</font><hr /><pre style="font-size-small; font-family: monospace;">Description Specification (deg) Tolerance (deg)
------------------------------------------------
Front Left Camber -0.25 0.25
Front Right Camber -0.25 0.25
Front Cross Camber N/A 0.25
Front Caster 4.00 0.50
Front Cross Caster N/A 0.50
Front Total Toe 0.00 0.06
Rear Camber 0.00 0.50
Rear Total Toe 0.00 0.12
Thrust Angle 0.00 0.25 </pre>[/QUOTE]
post #3 of 18 (permalink) Old 08-07-2004, 05:38 PM
bengston
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Keep in mind that you should dial in .5 &lt;edit&gt; cross-caster &lt;edit&gt; if you have road crown to deal with and don't want the car pulling to the right. Also, you'll want 1/16" of toe instead of zero, since these cars toe out when rolling.
 
post #4 of 18 (permalink) Old 08-07-2004, 07:53 PM
V8killer
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Quote:
Keep in mind that you should dial in .5 cross-camber if you have road crown to deal with and don't want the car pulling to the right.

</font><blockquote>code:</font><hr /><pre style="font-size-small; font-family: monospace;">Description Specification (deg) Tolerance (deg)
------------------------------------------------
Front Left Camber -0.25 0.25
Front Right Camber -0.25 0.25
Front Cross Camber 0.5 0.25
Front Caster 4.00 0.50
Front Cross Caster N/A 0.50
Front Total Toe 0.00 0.06
Rear Camber 0.00 0.50
Rear Total Toe 0.00 0.12
Thrust Angle 0.00 0.25 </pre>
[/quote]Is this what the specs "should" look like to include the .5 xcamber?
post #5 of 18 (permalink) Old 08-09-2004, 12:30 PM
kevm14
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When you take into account the fact that every car is different (tires, suspension bushings, ride height, driving style/pickiness, frame-straightness) I believe that the best thing to do is align to the IGBA specs, then road test the car. Address any issue you have after testing. A good tech will work with you on this. Wayne is right about the camber correcting for crown. Caster also does this. I recommend lots of caster, both sides...
post #6 of 18 (permalink) Old 08-09-2004, 01:20 PM
bengston
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Sorry, had a brain fart there... It's cross-caster I meant. That may not be the exact figure used to eliminate pull to the right for all cars, but it will be much closer than 0 is.
post #7 of 18 (permalink) Old 08-09-2004, 02:40 PM
enigma9c1
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Okay, now I'm really confused. On a 9C1 with Impala wheels and 255/50 tires, Hotchkis springs and new shocks (Monroe SS), will I screw things up and ruin my tires by using the specs listed in this thread?
post #8 of 18 (permalink) Old 08-09-2004, 03:08 PM
allen89
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You should be just fine with the posted specs. The important thing is to find a shop that will work to get the settings correct. Then always go to the same shop because different Alignment racks will give different results. A good alignment with road testing and tweaking can take several hours. Most shops don't want to spend the time to do it correctly. The posted spec's are within the Factory suggestions which allow one-half a degree of tolerance plus or minus.
post #9 of 18 (permalink) Old 08-09-2004, 03:26 PM
bengston
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No, you will not mess anything up. The cross-camber is to remove the pull when on a roadway that leans to the right. The posted alignment specs are good, the cross-camber is just a "tweak" which a good shop would put in anyway, to eliminate the pull caused by road crown.
post #10 of 18 (permalink) Old 08-09-2004, 04:28 PM
vandal835
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Are these custom Alignment specs? Or factory specs?

Will these prevent the negative camber.. That results in inside tire wear on Impalas?
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