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New gearing

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Old Dec 7, 2010 | 10:32 AM
  #11  
jeepmedic's Avatar
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From: Cashton, WI
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I would strongly dissagree with the hwy speed thing. My 5.13s have corrected all downshifting problems on the interstate, I have OD back, and I can hit 80 mph no problems...but IDK why anyone would want to go that fast on 35s

My JK is my DD as well, and the 5.13s have made it drive better than did completely stock.

On the interstate I run about 2300 RPM @ 70 mph, on 35s, and get about 17.4 mpg on the 91 octane superchip tune.


Originally Posted by JDRescueGreen08
if i did go with the 5.13, will it affect my overall performance. I had some people tell me that I will not have much highway speed. Just wanted to make sure it will not affect anything like that before I make the purchase. This is my daily driver as well as my toy.
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Old Dec 7, 2010 | 10:45 AM
  #12  
nthinuf's Avatar
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From: Austin <--> Colorado Springs
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Originally Posted by jeepmedic
I would strongly dissagree with the hwy speed thing. My 5.13s have corrected all downshifting problems on the interstate, I have OD back, and I can hit 80 mph no problems...but IDK why anyone would want to go that fast on 35s

My JK is my DD as well, and the 5.13s have made it drive better than did completely stock.

On the interstate I run about 2300 RPM @ 70 mph, on 35s, and get about 17.4 mpg on the 91 octane superchip tune.
You have an auto, the OP has a manual, you can't compare the two transmissions. With the same gearing and tires, he will be running more than 500 rpm higher than you.
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Old Dec 7, 2010 | 05:15 PM
  #13  
jeepmedic's Avatar
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Joined: Jun 2009
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From: Cashton, WI
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My bad....i did not notice about the manual tranny..I stand corrected


Originally Posted by nthinuf
You have an auto, the OP has a manual, you can't compare the two transmissions. With the same gearing and tires, he will be running more than 500 rpm higher than you.
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