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Old 01-04-2007, 10:03 PM   #1
LorcinLS1
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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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Old 01-05-2007, 10:35 AM   #2
swb85
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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
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Old 01-05-2007, 10:47 PM   #3
joeymarkgraf
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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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Old 01-05-2007, 10:55 PM   #4
msgross
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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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Old 01-11-2007, 12:35 AM   #5
jimfulco
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Re: Speedo calibration

Quote:
Originally Posted by joeymarkgraf View Post
Does anyone know if pulling out the shaft and greasing it works? I've heard that, but I'm skeptical...
The short answer is no. It might help if your speedo needle wiggles, though.
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Old 01-11-2007, 12:46 AM   #6
poncho_villa
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Re: Speedo calibration

Quote:
Originally Posted by joeymarkgraf View Post
Does anyone know if pulling out the shaft and greasing it works? I've heard that, but I'm skeptical...
The wife says it works but I too am sceptical.:hit2:
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