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Author Topic: Ratio adapter  (Read 1903 times)

Offline Gusgus74

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  • Posts: 21
Ratio adapter
« on: December 14, 2010, 12:15:15 am »
My 74 c10 has a ratio adapter attached to the speedo cable at the trans tailshaft. Did these trucks come with these adapters from the factory or did the PO install it? I need to correct the speedo which now reads about 10 MPH slower than actual.
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Offline howlinwolf

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  • Posts: 220
Re: Ratio adapter
« Reply #1 on: December 14, 2010, 08:43:56 am »
i need one too. anyone have a link.
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78 Chevy Custom Deluxe flatbed, PROPANE POWERED
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