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Speedo Re-calibration gears...

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    #16
    Vic posted in the second post an electronic corrector. It should work on your car.
    1990 Country Squire - under restoration
    1988 Crown Vic LTD Wagon - daily beater

    GMN Box Panther History
    Box Panther Horsepower and Torque Ratings
    Box Panther Production Numbers

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      #17
      if 3.55s were added later... the original was probably 2.73 or 3.08 I'm guessing... so the output shaft is 8 tooth. You'll need a 21 tooth driven speedo gear to get the speedo correct with 3.55s and stock diameter tires.

      Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
      rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

      Originally posted by gadget73
      ... and it should all work like magic and unicorns and stuff.

      Originally posted by dmccaig
      Overhead, some poor bastards are flying in airplanes.

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        #18
        Originally posted by Tiggie View Post
        Vic posted in the second post an electronic corrector. It should work on your car.
        Oops totally missed that...and thats actually the same one i used on my stangs

        Originally posted by sly View Post
        if 3.55s were added later... the original was probably 2.73 or 3.08 I'm guessing... so the output shaft is 8 tooth. You'll need a 21 tooth driven speedo gear to get the speedo correct with 3.55s and stock diameter tires.
        ok cool ill use that site Gadget posted and see if a i can get a correct tooth guess-timate

        Thanks again everyone.
        1990 Crown Vic - Lowered, E303 cammed, Short tube headers, H-pipe and Thursh welded mufflers dumped....MANY UPDATES COMING
        1999 Expedition EB mildy lifted on 33" Toyo's
        2012 4Runner Trail, 33" Duratracs, KDSS,lifted and louder.

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          #19
          Originally posted by Vwright14 View Post
          Oops totally missed that...and thats actually the same one i used on my stangs



          ok cool ill use that site Gadget posted and see if a i can get a correct tooth guess-timate

          Thanks again everyone.
          So you're familiar with that unit already.
          It works great for my '91 MGM.
          Kinda weird how the Panthers went electronic speedo in '90 but the Mustangs didn't go electronic until '94.
          Even an '80s digidash car would work with that unit.
          Vic

          ~ 1989 MGM LS Colony Park - Large Marge
          ~ 1998 MGM LS - new DD
          ~ 1991 MGM LS "The Scab"
          ~ 1991 MGM GS "The Ice Car"

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            #20
            Yeah it's crazy how ford used technology....oh yeah sure mass air in stangs in 87-88...oh crown vic, nahh your fine....trucks..ha get bent..buuuut electronic speedo ok ok fine....now mustang stop complaining you got mass air and better heads!....trucks we gave you a 351w lightning now just be happy!

            Sent while like doing stuff and what not.
            1990 Crown Vic - Lowered, E303 cammed, Short tube headers, H-pipe and Thursh welded mufflers dumped....MANY UPDATES COMING
            1999 Expedition EB mildy lifted on 33" Toyo's
            2012 4Runner Trail, 33" Duratracs, KDSS,lifted and louder.

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