Your dealer is either wrong or lying to you. The speed sensor has been
on the axle since the '98 model year. By placing it on the axle, you
only need to know how many tire revolutions per mile - the diff and
transmission are out of the equation at that point.
Noah Boehm wrote:
>
> hmmm, thats weird...Hard to understand..I called the dealership, and they
> told me that there are 3 different speedo gears for trucks with a 3.92 rear
> ratio. a 35 tooth, 36 and 38. The different gears depend on which tire
> size you have. Mine has 255.65.15's on it...I am going to keep the same
> tires I have now, since they are new and have no need to be changed. How
> does the speed sensor measure the amount of times the diff turns without
> knowing what the variables are. If I put a 3.92 instead of a 3.55, I
> figured it would turn quite a bit faster than stock...I am asking because I
> don't really know too much about this truck yet as far as modifying stuff
> like this...When I made the change on my Mustang, I went from a 3.08 to a
> 3.73, changed to speedo gear on the side of the trans and its all good...
>
> -----Original Message-----
> From: owner-dakota-truck@BUFFNET.NET
> [mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of Andy Levy
> Sent: Thursday, April 19, 2001 10:42 PM
> To: dakota-truck-moderator@bent.twistedbits.net
> Subject: Re: DML: Gears
>
> There is NO speedo gear that needs to be changed and no recalibration of
> anything required. Your speed sensor is on the rear axle, and the only
> change to your truck that will result in a required recalibration is a
> change intire size.
>
> Noah Boehm wrote:
> >
> > Hi, I am new to the list and am trying to find out some information on
> > changing gears. I have a 2000 Dakota that I am going to install a 3.92
> gear
> > in, instead of the 3.55 for a little more acceleration. I want to know if
> > anyone has done this, and what speedo gear they used to compensate for it.
> > My truck has the 255.65.15 tires on it, 2wd, V6...Nothing special...Let me
> > know if possible where to find out about this...How do I compensate for
> the
> > gear difference at my odometer, I figured that I will have to also change
> > the speedo drive gear, anyone know where it is located???
> >
> > Thanks
> >
> > Noah Boehm
> > theark1@mediaone.net
> > 89 5.slo
> > 00 Dakota
> > http://people.mw.mediaone.net/theark1/index.html
>
> --
> -andy
> http://home.twcny.rr.com/andylevy/ --- andylevy@bigfoot.com
> ----------------------------------------------------------------
> Remember, amateurs built the ark. Professionals built the Titanic.
> ----------------------------------------------------------------
-- -andy http://home.twcny.rr.com/andylevy/ --- andylevy@bigfoot.com ---------------------------------------------------------------- Remember, amateurs built the ark. Professionals built the Titanic. ----------------------------------------------------------------
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