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How do I find my LSD rear end ratio?

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    How do I find my LSD rear end ratio?

    Yeah, I know about the tag thing... my tag is rusted and corroded to hell and can't be read...

    What do I look for now?

    #2
    take it appart and count the ring and pinion...
    ///Alpinweiß II 24v 91' 318is, Alpinweiß III 99' 323i, 04' Yamaha R6 SE for sale, 00' VW GTi, 83' El Camino BURNED, 01' P71sold, 92' Miatasold

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      #3
      Originally posted by asubimmer View Post
      take it appart and count the ring and pinion...
      sounds like its going to be a long night;)
      Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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        #4
        yeah ouch... haha

        is there no way to judge it by rpm's in certian gears? or are they just that close together?

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          #5
          You can get the ratio by direct measurement. Jack up the rear of the car, place the transmission in neutral, and rotate the driveshaft counting turns of the it and the rear wheels. Your 325is would have come with a 3.73 diff and so 41 rotations of the driveshaft should result in 11 rotations of the wheels.
          The car makes it possible, but the driver makes it happen.
          Jim Levie, Huntsville, AL

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            #6
            -What's your rpm in 5th @ 60mph?
            1989 cirrisblau-metallic 325i

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