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Tune for gears?

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Old Jan 14, 2007 | 10:08 PM
  #1  
Fellow294's Avatar
Fellow294
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Default Tune for gears?
I know its probably been asked but could not find it. Im going from 3:42's to 4:10's. Would this require my pcm to be retuned?? Thanks One other thing...8.5 10 bolt is our gears sets correct??
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Old Jan 14, 2007 | 10:19 PM
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Derek @ EDO's Avatar
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It will drive fine, although your speedo will be off and your downshifts may be affected, mine were..

8.5 10 bolt is correct.

Motive, OEM and Yukons are great choices
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Old Jan 14, 2007 | 10:21 PM
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Good and cheapest place to buy?
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Old Jan 14, 2007 | 10:42 PM
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Goin from a 3.42 to a 4.10 the ABS and brake light will come on.To fix that the speedo needs to be recalibrated
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Old Jan 14, 2007 | 10:44 PM
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gears? randys ring and pinion, Gears Are Us on ebay.
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