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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 01-29-2014, 10:22 AM
  #31  
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1- 4.10 (stock rubi gear)
2- 37x12.50x15 maxxis creepy crawlers
3- 2300ish
4- flashpaq
5-really impressed with this 3.6 not much change from factory 32s
6- awesome 4:1 transfer case doesn't know they are 37" stickies
7- 42s on tons with 5.13 gears and an Ls series v8
Old 01-29-2014, 11:09 AM
  #32  
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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? 5.38's

2 - What tire size & Brand are you running? BFG Krawler 37's

3 - At 70 mph what RPM is your engine turning?Right around 3000ISH

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

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

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

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? This set up is ideal for me.

Old 01-29-2014, 02:45 PM
  #33  
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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?
12 4door auto
1- 3.73
2- 35x12.5x17 Toyo mt
3- 2500 roughly
4- bullydog gt
5- keeps up with a '12 golf tdi with a tune, so decent
6- more than enough to spin all 4 and break axles (ask me how I know)
7- yes, 40s on one tons with a 5.xx gear probably
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Last edited by Zoglmann; 01-29-2014 at 03:58 PM.
Old 01-29-2014, 03:01 PM
  #34  
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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. 3.21
2. stock 225/75R16
3.around 2100 RPMs in sixth gear
4. nope
5. not bad it will get up and go
6. nothing to complain about now because I am running the stock tires
7.35" tires with 4.88 gears would be my ideal set up
Old 01-30-2014, 06:51 AM
  #35  
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Originally Posted by Matthewd5
How is the 4:88 with 35's? Sounds like you won't have to regear when you goto 37's matthew
4:88 with 35's are fine I think no problems for me And they will be fine when I go to a 37" tire also I'm assuming!
Old 01-30-2014, 07:56 AM
  #36  
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2013 JK 6 Speed, averaging 17.5 mpg with mixed driving.

1 - What gear ratio are you running?
3.21
2 - What tire size & Brand are you running?
255/75/17 Rubicon Take Offs
3 - At 70 mph what RPM is your engine turning?
2000
4 - Are you using the AEV PROCAL or Superchips Flashpaq?
FlashCal
5 - On the road what is your opinion of the performance?
Not too bad, sometimes I need to downshift.
6 - Off road what is your opinion of the performance?
Real happy off road. I've done 3,800 miles like this in two months with a lot of it being on county dirt roads.
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?
4.88's and 35's are in the future, will probably go with Duratracks. I'd need to swindle Eaton E-Lockers out of the god mother though.

Last edited by Black2013JK; 01-30-2014 at 08:02 AM.
Old 01-30-2014, 11:54 AM
  #37  
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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? 4.10 automatic

2 - What tire size & Brand are you running? Hancook MT (34")

3 - At 70 mph what RPM is your engine turning? Not sure about 70 but at 62 I'm at 2000rpm

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

5 - On the road what is your opinion of the performance? Sluggish up until 2000 rpm, then the motor wakes up and it really kicks.

6 - Off road what is your opinion of the performance? No complaints

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?
I'd definitely go to 37s and the appropriate gear ratio to match. Maybe a Superchips for a little added power.
Old 01-30-2014, 02:33 PM
  #38  
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Anyone running 4.56 on 37's? Curious how those would be compared to a 4.88.
Old 01-31-2014, 07:10 AM
  #39  
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1. 2013 4dr Sport Auto 4.56
2. 35x12.50-17 ProComp Xtreme AT
3. At 70 mph I'm turning 2650RPM
4. AEV Pro Cal (this is not optional if going from 3.21 to 4.56 it will go to 3rd gear and stay)
5. Performance on the street is good does still shifts at too high an RPM
6. Good
7. I wouldn't change anything with the tires/gearing but wish I had gone with better springs.
Old 01-31-2014, 08:20 AM
  #40  
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2013 JKUR. Coming from a 2011 JKR

1 - What gear ratio are you running?
4.10'
2 - What tire size & Brand are you running?
Toyo MT 285/75/17
3 - At 70 mph what RPM is your engine turning?
~2600-2800
4 - Are you using the AEV PROCAL or Superchips Flashpaq?
Bully dog
5 - On the road what is your opinion of the performance?
Compared to the 3.8L its great and in the mtns compared to the 3.8. Doesn't down shift near as much , so much more power
6 - Off road what is your opinion of the performance?
Very happy. I like the 5 Spd auto manually swift in and out in the lower gears for off roading. As for it capability vs the 3.8 both are good at the low end going over obstacles not much differences there. I did find myself needing to go into 4Lo sooner with the 3.8L to percent tranny overheating issues that the 3.6L doesn't appear to have.
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?

4.88's for 35's and maybe even 37's in the future


Overall very happy with the upgrade from the 3.8L

Last edited by JK-jeepit; 01-31-2014 at 08:32 AM.


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