Thread: Gear Ratios
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Old 01-26-2008, 10:26 AM
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TerryMason TerryMason is offline
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Real Name: Terry Mason
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Jeep Gear Ratio Calculator





Gear Ratio
This chart will tell you the rpm needed to reach 65 mph




Tire
Size












3.313.423.553.733.914.114.274.564.885.135.295.385.71


27



2677276628723017316333253454368939474150427943524619


28



2582266827692909305032063331355738064001412641964454


29



2493257626742809294530953216343436753863398440524300


30



2410249025842715284629923109332035533735385139174157


31



2332240925012628275528963008321338383614372737904023


32



2259233424232546269628052914311233313501361036723897


33



2191226323492469258827202826301832303395350135613779


34



2126219722802396251226402743292931353295339834563668


35



2065213422152328244025652664284530453201330133573563


36



2008207521542263237224932590276629613112320932643464


37



1954201920952203230824262520269228813028312331763370


38



1902196620402144224723622454262128052948304030923282


39



1854191519882089219023022391255427332873296230133198


40



1807186719382037213522442331249026642801288829373118


41



1763182218911987208321892275242925992733281828663042


42



1721177818461940203321372220237125382668275127982969


43



1681173718031894198620872169231624792606268727332900


44



1643169817621851194120402119226324222546262626702834




Blue = 2600 RPM

Better Mileage



Green = 2800 RPM
Around factory


Red = 3100
RPM
Good Power



Last edited by TerryMason; 03-05-2008 at 07:29 AM.
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