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-   -   Tranny Swap 99 to 98 .. SpeedCal ?? (https://mustangboards.com/modular-4-6l-tech/36544-tranny-swap-99-98-speedcal.html)

bradwcampbell 06-04-2009 10:46 PM

Tranny Swap 99 to 98 .. SpeedCal ??
 
First time Posting , Got a few questions ..

Installed a 99 Manual Tranny to my 98 (Manual)..

I understand the Speedo gear is Electronic in the 99 Tranny ?.. and if I connect right now my Speedometer is going to be way off..??

Will the Speed Cal correct this ? Has anyone does this and know what to set the SpeedCal at ?

What dip switches should I use if I put 4.10's in the rear end ?

Thanks for the help
-brad

bassman97 06-05-2009 06:37 AM

Changing transmissions doesn't affect the speedo. The problem you have is your speedo is mechanical and the VSS is electronic on the new trans.

bradwcampbell 06-05-2009 09:11 AM

Can you explain mechanical ...

I am thinking when you say mechanical .. As if their is a speedo cable that screws into the transmission ... correct ?

But my 98 has 2 wires that connect to the vss unit

Morgan The Black 06-05-2009 09:20 AM

As in, there is a gear on the shaft that drives a gear on the VSS. The later model just has a reluctor wheel on the shaft and the VSS reads directly off that.

spike_africa 06-05-2009 10:08 AM

I know someone sells an adaptor to do this. Give me a day or two and I will find it. Unless you have not already bought the 99 tranny then skip it and get a T45 from a 96-98 car.

bradwcampbell 06-05-2009 12:20 PM

Yea 99 Tranny been in awhile .. but I never drive it anymore and wasnt 'that' concerened at the time


Thanks for the clarification on the mechanical speedo also

Any approach to handle this effectivley is appreciated

Thanks again
-Brad


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