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Thread: gear ratios

  1. #1

    Default gear ratios

    Is there an easy way to get the rear end gear ratio of my 1985 chevy truck. I am missing my information tag from the glove box.

  2. #2

    Default

    You can enter your VIN here:

    http://www.compnine.com/vid.php?



    I
    have not tried your year of truck, but it should give you what you are looking for.


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  3. #3

    Default

    Gear ratio is simply the number of rotations of the driveshaft divided by the number of rotations of the axleshaft. I would simply jack the back end up, rotate the wheels through one rotation while counting the number of rotations of the driveshaft.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  4. #4

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    Quote Originally Posted by MrShorty View Post
    Gear ratio is simply the number of rotations of the driveshaft divided by the number of rotations of the axleshaft. I would simply jack the back end up, rotate the wheels through one rotation while counting the number of rotations of the driveshaft.
    I dont how the weather is in Utah...but its to damn hot here to do all that when you can do it in 3 minutes on the puter! Work smarter not harder!


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