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2014 Chevy Silverado
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Gear change....how to fix speedo??

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Old July 17th, 2011, 1:44 PM
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Default Gear change....how to fix speedo??
Hello Guys

New to the forum and just picked up a 1992 Silverado, 5.7 auto with 3.08 rear axle. I have a 3.70 locking rear out of a 1990 454 pickup that I want to swap into my truck. I know it will make the speedo read wrong. Does anyone know how to correct it after I make the gear swap?
thanks
jess
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Old July 17th, 2011, 4:01 PM
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dealer will reprogram it...i'd say a custom tune person can fix it but idk how many people will tune a 92
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