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  1. Drive Gear for C4, Speedo Inaccurate

    Classic Cougar Tech
    Does anyone know what drive gear the typical 1967 C4 came with? My speedo is always off by several mph. It's not a linear difference and the gauge reads slower than the car is actually going. When I'm in the city it's off by about 5 mph. Highway speeds it's off about 10 mph. This leads me to...
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