WANTED need speedo gear

Road Runner Parts Wanted

  1. 65 cuda

    65 cuda Member

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    I'm running a 904 from a Cordoba and 8 3/4 rear differential with 3.55 gear ratio and I need the correct color gear drive to use in my 65 Plymouth barracuda fastback gasser project. I have a black gear drive right now but i don't know how many teeth it has

    I will probably need both the yellow 33 teeth and the green 34 teeth just to be sure cuz i think my tires are either 27.4 or 27.9
     
    Russ69Runner likes this.
  2. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    Take a look at e-bay
     
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  3. Russ69Runner

    Russ69Runner Well-Known Member

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    Passion also sell's them. Also Classic industries. Might check with Summit racing.
     
  4. quikbird

    quikbird Well-Known Member

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    think brewers has them also
     
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  5. Russ69Runner

    Russ69Runner Well-Known Member

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    What quikbird said.
     
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  6. RAINMANYEH

    RAINMANYEH Well-Known Member

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    I just looked at a Brewers and they have a helluv a lot better prices on the speedo gear than I’ve seen other places. Now if I could only get under my RR to see what is in it vs what I need to order (currently shows about 10 mph over what I’m running).
     
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  7. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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  8. quikbird

    quikbird Well-Known Member

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    If you know tire size and gear ratios brewers can tell you which one you need
     
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  9. 65 cuda

    65 cuda Member

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    this is what i have and need 34 teeth gear/ green or 33 teeth which i think is yellow
    my tire size is 27 inches and i am running 3.55 gear ratio in my 8 3/4 rear diff
    20200214_212753-jpg.jpg
     
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  10. Russ69Runner

    Russ69Runner Well-Known Member

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    Did you look at the post 69hemibeep posted. Got to that site and that will help figure out which one you need. Look's like your torn with the tire size. Look's like closer to yellow one. By the chart. Your in between the 26 inch tire and the 28 inch tire. The yellow would make it slower by some but close.
     
  11. appaking

    appaking New Member

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    This is the new style "short" pinion. Go on ebay and buy the adapter for the long pinion( $15-20 used). This will greatly expand the availability of the pinion and allow you to use the thread on cable.
     
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  12. cj69RR

    cj69RR Well-Known Member

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    Try any of your local transmission shops. I got the speedo gear I needed for $10.
     
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  13. 65 cuda

    65 cuda Member

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    i have a new cable from dick's speed-o-tach shop that goes into the gear housing in my pix. and they told me that i should use stock setup/oem parts for that transmission
     
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