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    1. #2
      Join Date
      Dec 2000
      Location
      NE Florida
      Posts
      2,483

      elec speedo

      The 4L60E will (should) have a vehicle speed sensor (VSS); These normally have 2 wires that feed the speed signal to the ECM. You can tap into that, or the output signal from the ECM. Either way- you can use the signal from that & then calibrate the speedo. Autometer has you run a certain distance to cal it- it's pretty easy.






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