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Thread: speedometer gear for a 700r trans.
          
   
   

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  1. 05-24-2004 04:18 PM #4
    Henry Rifle's Avatar
    Henry Rifle
    Henry Rifle is offline CHR Member
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    Car Year, Make, Model: 34 Ford Low Boy w/ZZ430 Clone
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    No need to guess. Go to this site. It will calculate the gears for you. Steve Holmes knows Chevy overdrive automatics inside out.

    All you need to know is tire diameter - or the P-metric tire size (e.g. P 295/50R15).

    http://www.700r4.com/speedoCalc/speedocalc.shtml

    You may need to change both the drive gear and the driven gear. To replace the drive gear, you need to pull the tailshaft.
    Last edited by Henry Rifle; 05-24-2004 at 04:40 PM.
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