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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.

PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM

3.6 owners only!!!!!!!!!!

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Old 01-27-2014 | 02:00 PM
  #11  
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From: Gray, GA
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4.88
37" MTZ
About 2700
Superchips
Much better on road, stays in 5th at a better rpm range for mpg than with my 4.10
Haven't had it off road yet with new gears
Not a thing.

sent from my work leash
Old 01-27-2014 | 04:08 PM
  #12  
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Mine is an automatic.


1 - What gear ratio are you running? 4:88

2 - What tire size & Brand are you running? 35" KM2's witch run very small

3 - At 70 mph what RPM is your engine turning? 2700rpm

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

5 - On the road what is your opinion of the performance? Handles good on road plenty of acceleration still.

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

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 should have gone to a 37" tire and will this summer.
Old 01-27-2014 | 04:25 PM
  #13  
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From: Kitchener
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09 JKU auto.....

5.13 Yukon
35" Duratracs(winter) 35" Mickey MTZ's(summer) and love both these tires for their seasons .... Mind you new 37" Goodyear MTR w Kevlar in garage.
2500 rpm (sure to change when the 37's go on)
Superchip
love it both on and Offroad
If fairy god mother was paying for repairs and gas I'd get 37" Pitbull rocker tires and either 5.13 still or 5.38 gears
Old 01-27-2014 | 04:34 PM
  #14  
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Auto
1 - What gear ratio are you running? 3.73
2 - What tire size & Brand are you running? 35" Toyo MT
3 - At 70 mph what RPM is your engine turning? About 2600
4 - Are you using the AEV PROCAL or Superchips Flashpaq? Hypertech
5 - On the road what is your opinion of the performance? So so. Down shifts on the highway
6 - Off road what is your opinion of the performance? Good, never had a problem
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? 4.56 gears, 35" very aggressive all terrain not MTs maybe DuraTrac

Last edited by TripleBJK; 01-29-2014 at 08:48 AM.
Old 01-27-2014 | 05:12 PM
  #15  
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From: West Richland Washington
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Originally Posted by robsjeep9
09 JKU auto.....

5.13 Yukon
35" Duratracs(winter) 35" Mickey MTZ's(summer) and love both these tires for their seasons .... Mind you new 37" Goodyear MTR w Kevlar in garage.
2500 rpm (sure to change when the 37's go on)
Superchip
love it both on and Offroad
If fairy god mother was paying for repairs and gas I'd get 37" Pitbull rocker tires and either 5.13 still or 5.38 gears
I was thinking no way your turn 2500 @ 70 mph then I saw your a 09. OP is looking for 12+ jeeps.
Old 01-27-2014 | 06:18 PM
  #16  
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From: North Port, FL
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1 - 3.21 (sigh...)
2 - 33x12.50r15 Goodyear Duratracs
3 - Right around 2300 at 70mph
4 - Use the Flashcal to correct for tire pressures and speedo (although the speedo was almost right)
5 - It's okay - I came from a Hemi Charger, so...
6 - Good (never felt it lacking)
7 - 4.88 with 35" Duratracs
Old 01-27-2014 | 06:32 PM
  #17  
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From: Archer, Florida
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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 - 4.56

2 - 35" Nitto Trail Grappler

3 - 2850

4 - AEV PROCAL

5 - Around town it is quick, love the off line jump. On Highway at 75-80 runs high RPM 3000 but still gets good MPG

6 - Awesome, simply awesome.....

7 - No, thought about going to 37" but it does everything I want and need and I don't have to mess with the drive shafts and lift
Old 01-27-2014 | 06:50 PM
  #18  
UC Rubi's Avatar
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From: Merced, CA/Los Angeles, CA
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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. 4.88
2. Nitto trail grapplers 37"
3. ~2500
4. Aev procal
5. Revs a little high in the lower gears from a stand still. (6speed)
6. Offroad performance is great. Loving the gears after using 4.1 and 37s
7. For 37s the 4.88 are perfect to me for a 6 speed. Wouldn't change a thing
Old 01-27-2014 | 07:39 PM
  #19  
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From: United States
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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?
My Jeep is a 2012 Wrangler 2-door Sport.

1. Still running factory 3.73's.
2. Tires are 285/70/17 Goodyear Duratracs.
3. At 70 mph, just north or right around 2200 RPM if I recall correctly.
4. I am using AEV Procal.
5. On road, I think it's the perfect blend of "daily driver" and "off road rig".
6. Off road, it's absolutely fantastic.
7. IF fairy god mother granted a gear/tire wish, I honestly don't know. I'm not wanting for a whole lot. 4.10's maybe, or if I was going to drive it completely off road, 4.56's maybe?
Old 01-27-2014 | 08:05 PM
  #20  
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From: San Diego, Ca
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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?
Jkur auto
1. Stock 4.10
2. Toyo m/t 35x 12.50 And 37 x12.50 nitto trail
3. Not sure. 2300 maybe with 35"
4. Procal
5. On road is acceptable with both size tires. Probably get 14-14.5 mpg on 35s driving 65-70. More shifting with the 37's.
6. Off road is acceptable to good with both tires. 35s at speed are good in 2wd or 4hi. 4lo with both sizes is decent.
7. Going to swap to 4.88's. I drive lots of freeway. Want more pick up and less shifting on the road so I can stick with 37s.



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