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Power Strokes
6.7 Aftermarket
Lifted 6 inch...need new gears??
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[QUOTE="dseitler, post: 1026680, member: 14112"] I'll just pic a number or RPM Gear ratio is 3:55 with 33" tires = 2349 RPM Say you want 6th gear but you have to divide in the final ratio output of the transmission to get you true RPM at 65 MPH. In this case it's .67 The chart is based on 65 MPH. 2349 times .67 = 1573 This should be your RPM at 65MPH with 33" tires in 6th gear 2349 times .86 = 2020 This should be your RPM at 65MPH with 33" tires in 5th gear [/QUOTE]
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Lifted 6 inch...need new gears??
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