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05-24-2018, 12:22 AM
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#1 |
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Registered User
 Join Date: Apr 2011
Location: Ft. Worth, Tx
Posts: 536
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Speedometer not accurate
On my truck build(65 C10), I replaced the 2 speed powerglide transmission with a TH400 and, the speedometer is way off. What do I need to make it accurate or, can it even be modified to work with the TH400?
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05-24-2018, 06:43 AM
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#2 |
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Senior Member
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: Speedometer not accurate
What get changed is in the trans. They all have gear sets in them that are used to calibrate the speedometer. Here is a link to one of the online calculators to help get you working.
Jimmy http://www.tciauto.com/tc/speedometer-gear-calculator/
__________________
60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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05-24-2018, 11:35 PM
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#3 |
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Registered User
Join Date: Apr 2011
Location: Ft. Worth, Tx
Posts: 536
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Re: Speedometer not accurate
Thanks for the link. I'll check it out.
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