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Aftermarket speedometer options

Discussion in 'The Garage' started by mouse, Jun 14, 2006.

  1. mouse

    mouse 1/2 ton status

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    Location:
    Great Falls Mt
    Does anyone know of an aftermarket speedometer that will work with the digital VSS' - i.e. 1990 and newer vintage trucks?

    Looking for something that looks from the 1960's, but works in the newer trucks.

    Thanks.
     
  2. DPI

    DPI 1/2 ton status

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    Location:
    In the Burbs close to Tulsa, OK
    Check out this link to how the VSS is layed out. Look at page 4.

    You can use a speedometer that accepts a 2 (2000ppm) pulse or 4 (4000ppm) pulse depending on how you want to do the upgrade.

    The stock speedometer uses a 2 pulse. So if you can find a 2 pulse speedometer that should work using existing setup.

    You could also jump the wire off of the Cruise Control pin and run a 4 pulse speedometer. For that matter, you could use a 40 ppr or a 128ppr for that matter.

    Sorry about not providing any specifics, but this should give you some information to get started looking...

    dp
     
  3. mouse

    mouse 1/2 ton status

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    Location:
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    Thanks for the link. Still hoping to find something that resembles a stock speedo and not have to use a stock one...
     

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