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speedometer

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82stangracer:
my 82 GT still has the stock 4 speed srod but I replaced the 7.5 with a 86 8.8 and put in 3:73 gears. What speedo gear do I need to make my speedo read right? Also is there a 140 or 145mph speedo that I can replace the factory 85mph and still look factory. and if so what speedo gear do I need

rmodel65:
the mustang svo has marks to 140 but no numbers

C4OZ-17271-A
Manual 7-Tooth 3.73 Ratio / Red 21 Speedo Gear http://www.steeda.com/products/speedometer_recalibration_gears.php

seandalton42:
A speedometer is a device that measures the instantaneous speed of a land vehicle. Now universally fitted to motor vehicles, they started to be available as options in the 1900s, and as standard equipment from about 1910 onwards.
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seandalton
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