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Mechanical Spedo Calibration

Discussion in 'The Garage' started by Luehrs1, Apr 26, 2005.

  1. Luehrs1

    Luehrs1 Registered Member

    Joined:
    Feb 5, 2005
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    Location:
    Jacksonville
    I have an '89 Blazer with 33" tires and a transfer case out of a '88 Suburban. The spedo reading is off. When it says 55 mph the person that helped me test it was going 70 mph. Is there anyway to get that fixed?

    Patrick
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Joined:
    Jul 22, 2001
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    16,217
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    Location:
    Mesa , Arizona USA
    You replace the gear the cable connects to on the tailhousing . Its too funny .... I figured it out on mine , and have yet to buy it :D

    Look in here Thread

    There are some links in the post I made that help you oick the right gear :grin:
     
  3. bigred81

    bigred81 1/2 ton status

    Joined:
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    Location:
    Falls City,TX
    If you can get me the size of the tires, current axle ratio, the year model, transmission, and t-case I can call the dealer ship in Victoria to get a gear recommendation for the t-case. I need to know the color of the main gear inside the t-case if it is the one you got from it was a gray gear. Give me call if you need help (830) 583-5437. I have test this week so it might be hard to get a hold of me.

    Bigred81
     

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