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11-30-2008, 05:46 PM
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#1 |
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Registered User
Join Date: Jun 2008
Location: Moore, OK
Posts: 41
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Speedo help
Ok, I changed my speedo gears again and my speedo is still off. The only thing that I havent chaned is the speedo it self because it was working. I have a 85 C10 with a 700R4. The gears I have in the tranny now are a 35 and a green(18 I think) with a standard rear axle 2.76 I think.
edit: my speedo is reading approx 5 MPH slow Last edited by worthirt_99; 11-30-2008 at 06:20 PM. Reason: Speedo reading |
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11-30-2008, 08:27 PM
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#2 |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
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Re: Speedo help
Have you looked at Bowtie Overdrives site? They should be able to tell you what gears you need- LINK
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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11-30-2008, 08:44 PM
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#3 |
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Squarebody Aficionado
Join Date: May 2008
Location: Miami, FL
Posts: 713
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Re: Speedo help
i got 3.73s in my rearend and i want to know what gears i need for my truck to have a accurate speedo, should i do this now or wait till i change the wheels and tires completely.
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11-30-2008, 09:19 PM
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#4 |
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Registered User
Join Date: Nov 2007
Location: New Jersey
Posts: 466
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Re: Speedo help
Not all speedos are accurate. How are you checking your speedo to know that you are 5 mph slow. I know with motorcycles they can be off up to 3 of 4 mph and still fall into spec. I'm sure cars and trucks would be the same. Did you change tire size?.
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11-30-2008, 09:38 PM
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#5 |
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Registered User
Join Date: Jul 2007
Location: san antonio
Posts: 648
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Re: Speedo help
since i put my22's on my truck my speedo is off like crazy need info on this too ....
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11-30-2008, 10:08 PM
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#6 | |
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Registered User
Join Date: Jun 2008
Location: Moore, OK
Posts: 41
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Re: Speedo help
Quote:
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