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1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
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Old Mar 27, 2012 | 04:52 PM
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ford4ever_2003
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speedo

i have a 77 f150. i tried the gear calculator and it says to make the speedo correct i need to switch from a 17 tooth to a 14. but they dont make one. i was wondering how to fix it
 
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Old Mar 28, 2012 | 06:40 AM
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Rusty Roller
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They make a ratio change box but I can't find a like to the one you would need for a C-6; if you have a C-6....

Here is a link to one similar but it , I believe, is for a manual trans.....

Just for reference! Click on this link: eBay - Speed Ratio Not the correct one!

These guys can probably help you find what you need: http://www.transmissioncenter.net/sp...n_______va.htm
.
 
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