Great Lakes 4x4. The largest offroad forum in the Midwest - View Single Post - What gears you need and How much will my speedo be off.
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Old December 11th, 2011, 02:00 AM   #5
crazygrady127
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Well your right about the numbers changing with an automatic and overdrive , I have an 09 JK with 513's with 37" tires and at 70 mph Im cruising at 2400 2500 rpm with plenty of power , but when I turn off the overdrive it sky rockets to 3200 3300 !! Thank god for that over drive !! And in low gear (4-1 Rubicon transfer) I have more power than I need !!
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