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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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Old 05-08-2014, 09:11 AM
  #61  
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Originally Posted by WINGIT
This is yet another gearing thread. But I think I want something different. I want info on your rig. Even if you are still running stock gears and tires I want to hear from you. If you have upgraded I want to hear from you also. This is what I am looking for.......

1 - What gear ratio are you running?

2 - What tire size & Brand are you running?

3 - At 70 mph what RPM is your engine turning?

4 - Are you using the AEV PROCAL or Superchips Flashpaq?

5 - On the road what is your opinion of the performance?

6 - Off road what is your opinion of the performance?

7 - If your fairy god mother came to you and said you will get any tire/gear package you want would you change and to what?
Originally Posted by Matthewd5
1. 5:13
2. Goodyear MTR/K's 37/12.5/17
dont have 70 mph memorized but, at 60 mph in 6th the tach is just at the top end of the green Eco zone.
3. Procal
4. its great on the road, it tops out just over 80 (you could push it to higher, but 85 is the best
5. off-road it's wonderful, I traded the better off road vs better on road, in favor of off-road

i wouldn't change anything

matthew
well now that i have thousands more miles on my newly updated 2 door JK...

for Goodyear MTR K's in "37" they actually measure out to an inch or so less...IMHO you need to still look at that charts but i'd look at 1" or so LESS for your reference, and in my case with heavy bumpers, big wheels and a winch my i had to put 35"! into my AEV Procal to get my speedometer to match my GPS MPH wise.

matthew
Old 05-13-2014, 10:05 AM
  #62  
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4.56 Yukon gears. This is at 70 MPH. I have 35 in KM2's that measure closer to 34. Everything re programmed with AEV Procal
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Old 05-13-2014, 10:30 AM
  #63  
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What kind of highway mileage are you seeing. Debating exactly the same thing now.
Old 05-13-2014, 04:03 PM
  #64  
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Rubicon 2013. Stock tires and wheels. 3inch mopar stage 3 lift and .......... 20 mpg on highway.
I do live where the speed limit is 55 though. If I push for 70 it drops to 17 to 18.

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Old 05-13-2014, 04:14 PM
  #65  
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Originally Posted by Dbmoorejr
Rubicon 2013. Stock tires and wheels. 3inch mopar stage 3 lift and .......... 20 mpg on highway. I do live where the speed limit is 55 though. If I push for 70 it drops to 17 to 18. Sent using smoke signals
That's very good. That 70 sure makes a big difference
Old 05-13-2014, 05:40 PM
  #66  
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Honestly I don't do much highway. Only have 400 miles since change. So only gotten gas 2 times. Really didn't change much. Around 16 mpg
Old 05-17-2014, 01:15 PM
  #67  
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2013 JKU Rubicon, MT

Originally Posted by WINGIT

1 - What gear ratio are you running? - Stock 4.10
,
2 - What tire size & Brand are you running? - 35X12.5R17LT, Goodyear Wrangler MT/R with Kevlar

3 - At 70 mph what RPM is your engine turning? - 2250

4 - Are you using the AEV PROCAL or Superchips Flashpaq? - Flashpaq

5 - On the road what is your opinion of the performance? - it is what it is, my other DD is a modded MINI Copper S so...

6 - Off road what is your opinion of the performance? - see No. 5

7 - If your fairy god mother came to you and said you will get any tire/gear package you want would you change and to what? - probably go 4.56 or 4.88

Last edited by chuckt62; 05-19-2014 at 03:48 AM.
Old 05-17-2014, 02:55 PM
  #68  
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Originally Posted by WINGIT
This is yet another gearing thread. But I think I want something different. I want info on your rig. Even if you are still running stock gears and tires I want to hear from you. If you have upgraded I want to hear from you also. This is what I am looking for.......

1 - What gear ratio are you running?

2 - What tire size & Brand are you running?

3 - At 70 mph what RPM is your engine turning?

4 - Are you using the AEV PROCAL or Superchips Flashpaq?

5 - On the road what is your opinion of the performance?

6 - Off road what is your opinion of the performance?

7 - If your fairy god mother came to you and said you will get any tire/gear package you want would you change and to what?
1. Stock 3.21 gears
2. 35s. Nitto Terra Grappler AT
3. Around 2K
4. AEV Procal
5. Feel a bit of a power lack until it hits 2K rpm. Tirewise, excellent and quite tire
6. Excellent performance offroad, grips pretty good
7. 40s MTRK/4.88 gears

Sent from my HTC One using Tapatalk
Old 05-18-2014, 07:28 PM
  #69  
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1. 3.73 gears
2. 315x75x16 General Grabbers
3. Around 2200-2400 RPM in 6th gear. 6 spd
4. Superchips Flashcal
5. Great road manner, a nice quite hum sound
6. Great offroad, grips well but haven't tried in snow
7. Maybe move up to 37s, 4.88 with lockers and strengthen both diffs
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Old 05-18-2014, 07:41 PM
  #70  
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This is yet another gearing thread. But I think I want something different. I want info on your rig. Even if you are still running stock gears and tires I want to hear from you. If you have upgraded I want to hear from you also. This is what I am looking for.......

1 - 4.88

2 - 37x12.50R20 Nitto Trail Grapplers on 20" Fuel Kranks

3 - 2650-ish

4 - AEV Procal

5 - Great, as long as I don't dog it out, I get between 15-16.5 MPG, which is better than my Sierra with a 5.3l and 34's got. Around town and short drives it stays closer to 15.

6 - Awesome offroad.

7 - I would keep the type of tires I have now but would switch to a 17" beadlock.


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