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    1. 08-06-2015 #1
      keith4909
      keith4909 is offline Registered User
      Join Date
      Feb 2014
      Location
      SoCal
      Posts
      308
      Country Flag: United States

      Rearend gear ratio

      Pontiac 474ci
      Max rev 5200-5500
      Turbo 400
      275/35r18 rear tire



      Are 3.73's to low for that motor/tranny/tire combo

      Found a few 12 bolts for sale it all have that low gearing.
      Was playing around with speed calculator and the Rpm will increase from 3000 to 3400 compared to a 3.31 gears. Any thoughts. Thank you
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