1989 Chevy Silverado speddometor calibration

1989 CHEVROLET SILVERADO
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JRAY40
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Electrical problem
1989 Chevy Silverado V8 Two Wheel Drive Automatic

I had to replace the curcuitboard in my cluster panel and now my speedometer is 20 mph off. How do I recalibrate or set it back to normal?
Sep 24, 2009 at 12:42 PM
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BLUELIGHTNIN6
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https://images.2carpros.com/forum/automotive_pictures/261618_Noname_1013.jpg


https://images.2carpros.com/forum/automotive_pictures/261618_Noname2_286.jpg

FIG. 1


https://images.2carpros.com/forum/automotive_pictures/261618_Graphic_183.jpg

Sep 24, 2009 at 12:52 PM
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JRAY40
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Thanks Alot for the help
Sep 24, 2009 at 8:45 PM
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