Transmissions and Drivetrain Need help with your trans? Problems with your axle?

t56 dakota digital speedo box?

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Old Sep 23, 2003 | 10:24 PM
  #1  
88 350 tpi formula's Avatar
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From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
t56 dakota digital speedo box?

how do you guys have your dakota digital boxes hooked up?
are you using all the outputs sent to the ecm and the cluster? or are you just recalibrating the one singnal into the factory buffer?
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Old Sep 24, 2003 | 11:40 AM
  #2  
LeeH's Avatar
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From: the sticks of NJ...
Car: 89 Firebird Formula
Engine: 389
Transmission: T56
Axle/Gears: Moser 4.11
All you have to do (if you already ahve an electronic speedo) is cut the wires going from the ECM to the VSS, hook up the vss wires onto the input side of Dakota box, then hook up the output from the box to the ECM. You also need a power wire into the dakota box, and you can just grap power from the cigarette lighter if you are lazy.

Remember to use shielded wire from the VSS to the dokota, or your speedo is gonna jump all over the place at idle...
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Old Sep 24, 2003 | 08:13 PM
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88 350 tpi formula's Avatar
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From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
well, that is along way around my question. I made a adapter out of another 88 tpi buffer box and wiring so I can just plug everything in to the factory wiring and I will mount the converter box to the dash on the pass side right next to the rear defrost relay. (right behind the panel that says "performance....." it will be alot cleaner spot for it and when I setup the speedo easy to get to with out having stuff hanging down
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