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01-04-2007, 10:03 PM
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#1 |
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Registered User
Join Date: Jan 2007
Location: NewOrleans
Posts: 5
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Speedo calibration
My speedo is off. At low speeds 40 and under its 5 mph off. when i am above 70 its 10 mph off. the truck is a t-350 3.73 gears with 275/60/15 tire. does anyone know what speedo gears should be in the tailshaft housing.
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01-05-2007, 10:35 AM
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#2 |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: Speedo calibration
Here's a good site that'll help you determine which speedo gear you need.
http://novaresource.org/speedo.htm
__________________
'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD |
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01-05-2007, 10:47 PM
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#3 |
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Registered User
Join Date: Dec 2006
Location: Corvallis, OR
Posts: 47
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Re: Speedo calibration
Does anyone know if pulling out the shaft and greasing it works? I've heard that, but I'm skeptical...
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01-11-2007, 12:35 AM
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#4 | |
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Registered User
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
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Re: Speedo calibration
Quote:
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01-11-2007, 12:46 AM
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#5 | |
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Registered User
Join Date: Feb 2005
Location: B.C.
Posts: 457
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Re: Speedo calibration
Quote:
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01-05-2007, 10:55 PM
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#6 |
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Registered User
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
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Re: Speedo calibration
carry a GPS..the only ticket that I have ever had was due to my speedometer being off because of my larger tires on an S-10....the excuse didn't work!
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