I have had the sensor out and there is no gear on it. If you look in the
hole where it goes it looks like it may be a trigger type of a sensor or
something like that.
Colin H.
Craig Baltzer wrote:
> There is actually a "gear" on the end of that sensor to connect it to
> the output shaft of the transmission and you change the "gear" to make
> the sensor send signals at a different rate to the JTEC and on to the
> speedo itself. There hasn't been a "speedo cable" connected to that gear
> for a number of years. For anyone thats interested, drop by the parts
> counter the next time you're at the Dodge dealer and they have a
> "blow-up" on the parts computer of the related components. Also, the
> Dak's have a separate category in the parts computer for "speedo pinion
> gears", and if the parts guy isn't familiar with the setup, he'll look
> under "Transmission" and "Differential" and tell you that there are no
> "speedo pinion gears" available...
>
> Craig
>
> -----Original Message-----
> From: Vincent Heckathorn [mailto:victorylane@iwaynet.net]
> Sent: September 20, 1998 11:30 PM
> To: dakota-truck@buffnet.net
> Subject: Re: Adjusting speedometer Was: RE:DML: Goodyear dealer says
> "Tir es have no mileage warranty"
>
> FWIW
> My 98 dakota does not have a speedo gear, It has a speedo sensor where
> the
> gear would be. I would think that we should be able to get different
> sensors for adjusting the speedo when changing gears and or tire size's.
>
> Colin H
>
> Craig Baltzer wrote:
>
> > The dealer can use the DRB to adjust the speedo for any of the "stock"
> > tire sizes. For a Durango (and prob. the Dak), these are 235/75/15 and
> > the 31x10.5" (or outter diameters of 28.878" and 31"). Other than
> that,
> > they have to change speedo pinion gears, and there are about 8 sizes
> > available for those. What still seems up for debate is if you can get
> > away with just changing the speedo pinion gears if you have ABS. There
> > is some vague wording in the factory service manual that says the JTEC
> > looks at both the ABS sensor speed, and the reading that its getting
> > from the transmission speed sensor and compares them. Since there is
> no
> > "ABS pinion gear", its unclear what happens...
> >
> > Craig
> >
> > -----Original Message-----
> > From: jim miller [mailto:jmiller@texnet.net]
> > Sent: September 20, 1998 3:30 PM
> > To: dakota-truck@buffnet.net
> > Subject: Re: Adjusting speedometer Was: RE:DML: Goodyear dealer says
> > "Tires have no mileage warranty"
> >
> > > Speedo should be able to be adjusted by any local Dodge
> > > dealer.
> > > Can the speedometer be adjusted for tire changes? If so, does
> anyone
> > > know how much it can be adjusted? (i.e. is there enough "play" in
> > there
> > > to adjust for something like a rearend ratio change?)
> > >
> > > -Jon-
> > >
> >
> > I took my 98 Dak to the dealer for a spedo adjust and they tried but
> > there are only
> > a few step type adjustments available and he could not get mine right.
> > I put on
> > larger diameter tires than the computer listed so my spedo still reads
> > about 3 mph
> > slow at 60 mph.
> > Jim in Waco
> > 98 RC V8 Auto P275 60X15 tires on 15X8 factory rims
> > Waiting on 99 R/T
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