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Thread: 1998 Chevrolet C6500 (topkick)

  1. #1
    Senior Member batty1214's Avatar
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    1998 Chevrolet C6500 (topkick)

    I need all ya'lls help again...... this time I am looking for the Wiring diagrahm for a 1998 Chevrolet topkick..... I am needing to know where the speed sensor for the speedometer is at, as well as the electrical input for the Tachometer...... all the gauges work, except these two..... To my knowledge, they have never worked....... I would worry about getting them working except MSHA is wanting them to, and what MSHA wants, they get......

    I have installed a new gauge cluster with no change............

    Oh, It has the Caterpillar diesel and spicer 7 speed transmission

  2. #2
    Senior Member Steve g.'s Avatar
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    Did you look on the rear end already? That's where it is on my truck.

  3. #3
    Senior Member batty1214's Avatar
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    yeah, not finding it.......

  4. #4
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    leolkfrm's Avatar
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    top of the tranny behind the dizzy, yo have to get at it from underneath
    4 wheels move the body
    2 wheels move the soul
    B.W.A.I
    Snow is a lot like religion and a lot like sex....you never know when you are going to get it!....or how much you will get

  5. #5
    Senior Member batty1214's Avatar
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    This truck doesnt have a dizzy Leo, Its a Caterpillar 3116..... But, I'll bet its still in that area somewhere...... where would the Tachometer run off of?

  6. #6
    Senior Member
    leolkfrm's Avatar
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    sorry thought it was an 8.1 gas!
    4 wheels move the body
    2 wheels move the soul
    B.W.A.I
    Snow is a lot like religion and a lot like sex....you never know when you are going to get it!....or how much you will get

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