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How many RPM's at 70 w/ 4:10's and factory 20's?

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Old May 29, 2009 | 04:29 PM
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bigred3297
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This is what the chart i posted states,

This chart is based on 65 MPH and a gear ratio of 1:1, on a manual transmission in 4th gear.
Note: If you have an automatic transmission your RPM will higher due to slippage in the transmission and the torque converter. With an overdrive transmission your RPM in overdrive will be 15% to 30% less than indicated.
 
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Old May 30, 2009 | 07:59 PM
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Thanks for the replys guys! Its gonna be right around 2000@ 70
 
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Old May 30, 2009 | 08:14 PM
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I dont know what gears I have, but I am 90 MPH @ 2k RPM exactly.
 
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Old May 31, 2009 | 10:18 PM
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where did you get your 4.10's from?

i would also buy the way love to put a detroit locker in my truck but well see anyone else thought about it?
 
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Old May 31, 2009 | 10:19 PM
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Mopar you have 4.56 gears in ur 05? thats pretty ignorant lol how you like em?
 
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Old Jun 1, 2009 | 01:04 AM
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Originally Posted by mruck05
Mopar you have 4.56 gears in ur 05? thats pretty ignorant lol how you like em?

ignorant? Do a search on here about gear ratios, 4.56 is the way to go
 
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