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how many teeth on 10 bolt gears.

Discussion in 'The Garage' started by y5mgisi, May 23, 2003.

  1. y5mgisi

    y5mgisi 1 ton status

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    Trying to figure out what gears i have in the front of my '80 chevy k20 4x4. any body know how many teeth are on 4.10 3.73 ring and pinions? /forums/images/graemlins/confused.gif
     
  2. Bubba Ray Boudreaux

    Bubba Ray Boudreaux 1 ton status

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    All you have to do is count the teeth on the ring gear and divide that by the teeth on the pinion and you will have your gear ratio.
     
  3. the cork

    the cork 1/2 ton status

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    if you can, rotate the ring gear until you see a series of
    numbers stamped on the edge of it example 41-11, 41 ring gear teeth, 11 pinion teeth, divide them you get 372,
    what are known as 373s etc, or count them as stated above, /forums/images/graemlins/thumb.gif
     
  4. Fletch79

    Fletch79 Registered Member

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    Above advice is correct.

    You can also put in neutral, unlock hubs, rotate shaft one revolution while counting axle revolutions.
    Axle revolutions divided by yoke revolutions is gear ratio.

    There are lots of net calculators available as well.
    http://www.drivetraindirect.com/html2/calculator2.html
    is one, they make it easy.
    I saw another that gave multiple answers depending on you transmission; very nice.
     

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