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Jim
Dodge Dakota
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8/24/2004
23:33:43
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 Subject: Recaliberation question
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Message:
I have the Dakota R/T rims on my truck. The truck is a 93 Dakota Sport Reg Cab 3.9L V6 Automatic. It has 3.55 gears in the back. Since I have gone from 15inch wheels to 17's. I went to the dealer and they told me that I need to find out what gear I have that senses speed in the trans. I probably need to go a size down so it spins faster. He says it is a easy figure out but they didn't know which one I had, and it is something that I don't want to mess with. I am wondering if anyone can help? Sorry I don't know much about this stuff.
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Haligan9
Dodge Dakota
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8/25/2004
01:02:38
|  RE: Recaliberation question
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Message:
What size tires did you put on the 17's?? How is the outside diameter of the new wheel/tire combo different from the stock? If there is little difference like if you plus sized the new tires your speedo should be close. If you search on here there is a link to a tire calculator that you can use to figure how the new tire/wheel effects your speedo
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daksport
Dodge Dakota
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8/25/2004
08:08:00
| RE: Recaliberation question
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Message:
Im changing my gears from 3.55s to 4.10s would I have to recalibrate my speedo?
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Noltz
Dodge Dakota
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8/28/2004
21:46:33
| RE: Recaliberation question
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Message:
Yes. You're speedo will read too high because the driveshaft is spinning ~15% faster than it used to for a given speed. This will also cause the odometer to click up faster.
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