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big_torque
Dodge Dakota
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4/07/2002
13:36:28
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 Subject: tire size & mph
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Message:
I have a 99 R/T and really want a set of Nitto NT555Rs for the rears but they dont have a size that gives me a 28" overall diameter. Closest they have is 275/40/17 which gives 25.63" overall. Is the speedo affected if a smaller dia. rear tire put on ? I just want some DOTs or some really good dry-traction tires for street/strip on my R/T rims.
All inputs welcome. Thanks.
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bjlindsey
*GenIII*
 
4/07/2002
18:08:59
| RE: tire size & mph
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Message:
Nitto makes a 275/50R-17 which would measure 27.8 inches. Found it at www.discounttire.com
Just pick your city and enter the size you want.
01 QC 4x4 5.9L 3.92 LSD
K&N clone, Clear Corners, Carbon Fiber Tails, Aluminum Billet 3rd Brake Light Cover, Bug Guard
www.FreeGasForYou.com
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big_torque
Dodge Dakota
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4/07/2002
19:22:47
| RE: tire size & mph
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Message:
I see the 275 / 50 / 17s you recommended are the Nitto NT450 series. How do those babies hook up ?
Would they be any good at the strip ?
- Thanks
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Halo3
GenIII
4/08/2002
09:52:55
| RE: tire size & mph
IP: Logged
Message:
big_torque,
The speedo is affected by ANY change to the tires' diameter/circumference, and there are two ways to correct it.
The first is to have a dealer re-program your CAB (Controller Anti-lock Brakes). However, most dealers will only flash the CAB with tire sizes that were actually available for that particular model & year. In my case, I went from the stock 235/75/15's to a set of 31x10.50x15's. Fortunately, these were part of an option package...thus the dealer could flash my PCM & correct my speedo reading & ABS behavior.
The second alternative is to hit up someone like SuperLift & get one of their modules that allows you to intercept & change the electrical pulses before they get to your speedo.
Hope that helps...
Semper Fi,
Halo3
'00 Lt. Driftwood 4x4 SLT DQC w/5.9L
http://home.attbi.com/~quadcab
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big_torque
Dodge Dakota
JOIN HERE
4/08/2002
23:54:51
| RE: tire size & mph
IP: Logged
Message:
Thanks , Halo
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