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Gears for 35s?

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Old Oct 2, 2011 | 07:01 PM
  #1  
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Default Gears for 35s?

What gears will I have to run if I put 35s on my 11' wrangler sport?
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Old Oct 2, 2011 | 07:08 PM
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You don't 'have' to swap gears. if you 'want' to swap them, open the faq's at the top of this modified area and check the Drivetrain section. You will find a chart for both the 6spd and the auto. Be sure to measure the tires, don't use mfg's specs.
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Old Oct 2, 2011 | 08:11 PM
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id recommend 4.88's
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Old Oct 2, 2011 | 08:12 PM
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while you will loose some power with a set of 35's, i think you will find that it isn't as bad as you'd think especially if you make sure to recalibrate your speedometer as it controls your shift points. if you feel the need to restore your power, 4.88's will give you back stock like performance and 5.13's will make your jeep feel like it has more HP. the down side to 5.13's is that it will also run on the high side of your RPM's at highway speeds. no big deal to me but, it's something you should know.
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Old Oct 2, 2011 | 08:19 PM
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Yeah I'm seeing that with mine "higher RPM'S" now and all I wanna do is put on bigger tires now!!
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Old Oct 2, 2011 | 10:02 PM
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Recommendations for a specific ratio when we don't know what kind of usage, or even which transmission he has?
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Old Oct 2, 2011 | 10:06 PM
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im looking at 5.13 in my auto 07 and when you say higher rpms what would the rpms approx be at when going 70mph?
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Old Oct 2, 2011 | 11:01 PM
  #8  
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Originally Posted by Brandon1024
im looking at 5.13 in my auto 07 and when you say higher rpms what would the rpms approx be at when going 70mph?
See post #2.

There is an rpm chart in the faq's. Use actual measured tire heights, not mfg's specs. And if you want to see your OD Off rpms, divide the od on rpm by .69
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Old Oct 2, 2011 | 11:17 PM
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Originally Posted by Brandon1024
im looking at 5.13 in my auto 07 and when you say higher rpms what would the rpms approx be at when going 70mph?
at 70mph in OD, you're about 2380rpm, if you need to lock out of OD it jumps to about 3500rpm.

I'm running 4.88's with 35's and they run great. mileage is good, power is back in the power band and if i need to lock out of OD, my rpms stay within range of holding my speed.

other mods that have helped - Superchips 93 tune, CAI, Screamin Demon & Livewires

Just got 4.88's broken in and very happy with them. mileage around town 16 - I use cruise control as often as possible. Freeway mpg TBD
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Old Oct 3, 2011 | 03:13 AM
  #10  
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I went with 5.13 in my manual with 35's. Love, it. I have power to spare.

I'm about 3000-3100 at 70mph in 6th gear.
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