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Old 01-04-2016, 05:43 PM
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2015 JKU 3.5 or 2.5 lift?

Loving my new Rubicon, LOVE IT! However, I want to upgrade the stock tires but not for mud tires, I hated those things on my 13 JK. The Jeep looked amazing but damn did the ride sucked. I also did a 3.5 lift, installed Fox Shocks, stabilizer bar, etc. The ride became hard, lots of noise, especially on the e-way, wow horribly loud. I was using 35 mud tires and Rock Star wheels 18.

I want to lift my Rubi, however, I want to keep somewhat of my stock ride quality. Debating which 35 tires "ALL terrain" will do the job? I may even consider 33 but I'm not sure about that idea just yet. Ok, I was told by another fellow Jeep owner that he used a Rubicon Express kit on his 12 JKU 3.5 lift. Not sure what that kit includes, but I want to lift my Rubi without sacrificing its ride handling characteristics. Not sure what kit to use, what shocks, etc. All that I know is that my previous Jeep used Fox's and I wasn't all impressed with its ride quality or characteristics. I don't do trails, mainly my riding is city driving in Chicago. I may try some trails out soon but light trails not to beat up my Rubi too much... Thoughts, suggestion, guidance please?? I am keeping my stock wheels! I want to do a few modification on my JKU but I want to keep her clean as possible, not too loud but clean fresh looking if you know what I mean.... Thanks~

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Old 01-04-2016, 06:34 PM   #2
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Well, I have the TF 2.5" coil lift with (plug your ears!) Fox IFP 2.0 shocks on BFG KO2's (285/70/r17) and honestly I couldn't be happier with the ride. Oh, and this is my daily driver.

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Old 01-04-2016, 06:49 PM   #3
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I got the tf 2.5 lift with 1/2 coil spacers for a 3" lift and the rancho brackets (will be installed Friday) with 35's I don't know bout 3.5 lift but 2.5" is super stable and soon it will be 3"
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Old 01-04-2016, 07:07 PM   #4
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Originally Posted by chgofirefighter View Post
Loving my new Rubicon, LOVE IT! However, I want to upgrade the stock tires but not for mud tires, I hated those things on my 13 JK. The Jeep looked amazing but damn did the ride sucked. I also did a 3.5 lift, installed Fox Shocks, stabilizer bar, etc. The ride became hard, lots of noise, especially on the e-way, wow horribly loud. I was using 35 mud tires and Rock Star wheels 18.

I want to lift my Rubi, however, I want to keep somewhat of my stock ride quality. Debating which 35 tires "ALL terrain" will do the job? I may even consider 33 but I'm not sure about that idea just yet. Ok, I was told by another fellow Jeep owner that he used a Rubicon Express kit on his 12 JKU 3.5 lift. Not sure what that kit includes, but I want to lift my Rubi without sacrificing its ride handling characteristics. Not sure what kit to use, what shocks, etc. All that I know is that my previous Jeep used Fox's and I wasn't all impressed with its ride quality or characteristics. I don't do trails, mainly my riding is city driving in Chicago. I may try some trails out soon but light trails not to beat up my Rubi too much... Thoughts, suggestion, guidance please?? I am keeping my stock wheels! I want to do a few modification on my JKU but I want to keep her clean as possible, not too loud but clean fresh looking if you know what I mean.... Thanks~
The Fox are a little firm but not too bad. They are a bit softer than the Bilsteins... But, you want Rancho RS9000XL's and you will be happy. I'd suggest the WF most popular kit with correction brackets and 9000 shocks.

Read this: https://www.wranglerforum.com/f202/mo...f-1136938.html

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Old 01-04-2016, 07:19 PM   #5
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I just bought the TeraFlex 2.5 coil kit with Rancho 9000XLs (special deal), AEV correction bracket & TF exhaust spacers from Northridge 4x4 (they are a forum sponsor) for $862 out the door (literally just an hour away). The deal basically you get 2 $110 shocks free.

TeraFlex JK 2 Door or 4 Door, 2.5 inch Lift Kit - TER-PROMO-1

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Old 01-04-2016, 07:28 PM   #6
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Originally Posted by Jeepster1228 View Post
I got the tf 2.5 lift with 1/2 coil spacers for a 3" lift and the rancho brackets (will be installed Friday) with 35's I don't know bout 3.5 lift but 2.5" is super stable and soon it will be 3"
Hey Jeepster, I was thinking the same thing with the Rancho geometry correction brackets. With my bumper/hoop & winch, I mentioned to the guys I bought my stuff from and in case I need to add a spacer like you are, the reason I went with AEV is that the Rancho is setup for only 2.5". The AEV has 2.5, 3.5 & 4.5" holes. Just something to keep in mind if you have aligment issues.
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Old 01-04-2016, 07:42 PM   #7
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thanks Willy I was reading on the forums and other forums on the 2.5 + rancho brackets and there overcasting wasnt a problem. HOpefully when I install the 1/2 coil spacers everything will be alright.
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Old 01-04-2016, 07:51 PM   #8
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Originally Posted by WillyD View Post
Hey Jeepster, I was thinking the same thing with the Rancho geometry correction brackets. With my bumper/hoop & winch, I mentioned to the guys I bought my stuff from and in case I need to add a spacer like you are, the reason I went with AEV is that the Rancho is setup for only 2.5". The AEV has 2.5, 3.5 & 4.5" holes. Just something to keep in mind if you have aligment issues.
The Rancho's are actually set for 3.5" lifts but the caster given at 2.5 is actually higher and causes no issues at all. Nothing wrong with the AEV or Rubicon Express brackets either...
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Old 01-04-2016, 07:52 PM   #9
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The Rancho 9000XLs have 9 adjustment settings so you can talor the ride for you.
I lived in Waukegan/Mundelin/Libertyville area for a while and the winters are about the same as here in Cheyenne, Crappy. I have a Willy that I just replaced the M/Ts with goodyear DuraTracs 285s (33s). The reason I went with DTs vs BFG KO2s is that I have seen the treads cake where the DTs weren't that bad. I have had them on the wife's Jeep for about a year and great all the way around.

The stock rim width is smaller than the recommended size for 35s. Some places will do it, some won't. That is the reason I went with 33s. If I am on a road trip and have a blowout, I don't want to have to search for a place that will do it.

As Willy sits, no spacers no lift, I do have a small rub on the swaybar up front. If I wasn't going on trails and did 99% driving on paved roads, I would have stopped there. Without spacers I do not rub on the fenders and tuck up into the wheel well. (Pic taken just before the rear tire lifted off the ground)
Not bad on the drivers side

Very close to wheel well rub


If you do go with 35s, you will be in the same boat as I am, bigger tires=rub, get spacers to take care of run= fender rub, get lift to take care of fender rub. $2625 (lift, correction bracket, exhaust spacer, wheel spacers & tires) just so I could get 33s on, I have to be crazy haha.
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Old 01-05-2016, 12:03 AM
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Originally Posted by N6VAN View Post
Well, I have the TF 2.5" coil lift with (plug your ears!) Fox IFP 2.0 shocks on BFG KO2's (285/70/r17) and honestly I couldn't be happier with the ride. Oh, and this is my daily driver.
I keep hearing a lot of good things abou the BFG KO2's could you pm me a picture of those tires and your setup?? Thanks
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Old 01-05-2016, 03:58 AM   #11
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The Rancho's are actually set for 3.5" lifts but the caster given at 2.5 is actually higher and causes no issues at all. Nothing wrong with the AEV or Rubicon Express brackets either...
X2 lower heights see more caster which is perfectly acceptable.
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Old 01-05-2016, 10:24 AM
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Originally Posted by WillyD View Post
I just bought the TeraFlex 2.5 coil kit with Rancho 9000XLs (special deal), AEV correction bracket & TF exhaust spacers from Northridge 4x4 (they are a forum sponsor) for $862 out the door (literally just an hour away). The deal basically you get 2 $110 shocks free.

TeraFlex JK 2 Door or 4 Door, 2.5 inch Lift Kit - TER-PROMO-1

Curious, is this a setup in which I can do in my garage over a day or so of work? I want to put my power tools to use, lol.. Any youtube videos on how to install these?

Lastly, are these shocks better than the stock Rubicon shocks, which is supposedly an upgraded suspension?
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Old 01-05-2016, 01:25 PM   #14
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Originally Posted by chgofirefighter View Post
Loving my new Rubicon, LOVE IT! However, I want to upgrade the stock tires but not for mud tires, I hated those things on my 13 JK. The Jeep looked amazing but damn did the ride sucked. I also did a 3.5 lift, installed Fox Shocks, stabilizer bar, etc. The ride became hard, lots of noise, especially on the e-way, wow horribly loud. I was using 35 mud tires and Rock Star wheels 18.

I want to lift my Rubi, however, I want to keep somewhat of my stock ride quality. Debating which 35 tires "ALL terrain" will do the job? I may even consider 33 but I'm not sure about that idea just yet. Ok, I was told by another fellow Jeep owner that he used a Rubicon Express kit on his 12 JKU 3.5 lift. Not sure what that kit includes, but I want to lift my Rubi without sacrificing its ride handling characteristics. Not sure what kit to use, what shocks, etc. All that I know is that my previous Jeep used Fox's and I wasn't all impressed with its ride quality or characteristics. I don't do trails, mainly my riding is city driving in Chicago. I may try some trails out soon but light trails not to beat up my Rubi too much... Thoughts, suggestion, guidance please?? I am keeping my stock wheels! I want to do a few modification on my JKU but I want to keep her clean as possible, not too loud but clean fresh looking if you know what I mean.... Thanks~
get a 1.75" spacer kit for all 4 corners and 315/70 17 duratracs...no rub and rides better/softer than stock...i have bilstein 5100s too so if you switch to the rancho 9000 you can fine tune for your likingClick image for larger version

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Old 01-05-2016, 10:03 PM   #15
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Curious, is this a setup in which I can do in my garage over a day or so of work? I want to put my power tools to use, lol.. Any youtube videos on how to install these?

Lastly, are these shocks better than the stock Rubicon shocks, which is supposedly an upgraded suspension?
It is easy to do, if I had a garage I would be doing it myself.

Quite a few videos
http://www.youtube.com/results?searc...y=teraflex+2.5

here is TeraFlex's produced vid
https://www.youtube.com/watch?v=vz-R5E-NPQg
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Old 01-05-2016, 10:17 PM   #16
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Curious, is this a setup in which I can do in my garage over a day or so of work? I want to put my power tools to use, lol..
I actually pains me that I can't do it myself, I am used to saying "I did everything but the window tint". Atleast I did put on the spacers myself today. Here are pics of front and rear rub spots. Remember this is with 33s, 35+ would be more pronounced
Front swaybar just before where it mounts to the frame

Rear control arm

But these took care of it


Plus, good excuse for new tool
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Old 01-05-2016, 11:36 PM
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get a 1.75" spacer kit for all 4 corners and 315/70 17 duratracs...no rub and rides better/softer than stock...i have bilstein 5100s too so if you switch to the rancho 9000 you can fine tune for your likingAttachment 2727545
Nice setup~ However, I don't like the Rancho shocks, the white and red kills those shocks, I may consider Bilstein or Fox's shocks~ What size tires are those?
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Old 01-06-2016, 07:32 AM   #18
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Nice setup~ However, I don't like the Rancho shocks, the white and red kills those shocks, I may consider Bilstein or Fox's shocks~ What size tires are those?
Just keep in mind, the Bilstein's or Fox might kill your ride quality... Can you do the OME yellow?
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Old 01-06-2016, 11:38 AM   #19
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KO2's ride great at 30psi. I have a Budget boost but will be doing a proper 2.5" lift soon. Will all the weight from the bumpers/winch/tire carrier and 35" tires, lost lift. Here is a pic:
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Old 01-06-2016, 11:46 AM   #20
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Let's try this again:
[IMG]jeep1 by roverrich, on Flickr[/IMG]
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Old 01-06-2016, 03:11 PM   #21
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Nice setup~ However, I don't like the Rancho shocks, the white and red kills those shocks, I may consider Bilstein or Fox's shocks~ What size tires are those?
those are 315/70 17 duratracs....the ride is smooth like a caddy. I dont like the cheap look of the ranchos either. The bilsteins are nice and i dont think theyre too rough at all....maybe the stock springs help with the ride quality 17/58.....I did get a fox ats installed at the same time and its a one finger driver now at 80mph
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Old 01-07-2016, 06:34 PM
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get a 1.75" spacer kit for all 4 corners and 315/70 17 duratracs...no rub and rides better/softer than stock...i have bilstein 5100s too so if you switch to the rancho 9000 you can fine tune for your likingAttachment 2727545

The Fox's shocks gives more of a stiffer ride
Bilstein ride quality I don't know about
Rancho's are adjustable and the shocks offered by Mopar lift kits supposedly offers you an in between ride quality between soft and medium ride quality~ But what do I know~
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Old 01-08-2016, 02:58 AM   #23
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I just bought the TeraFlex 2.5 coil kit with Rancho 9000XLs (special deal), AEV correction bracket & TF exhaust spacers from Northridge 4x4 (they are a forum sponsor) for $862 out the door (literally just an hour away). The deal basically you get 2 $110 shocks free.

TeraFlex JK 2 Door or 4 Door, 2.5 inch Lift Kit - TER-PROMO-1

For everyone running this, how are the road manners? I see some rear geometry correction, bet zero in the front. I just find it hard to swallow that the JK needs no geometry correction at 2.5in lift
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Old 01-08-2016, 07:29 AM   #24
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For everyone running this, how are the road manners? I see some rear geometry correction, bet zero in the front. I just find it hard to swallow that the JK needs no geometry correction at 2.5in lift
You can see that the poster bought the AEV geometry brackets to go with that kit, based on the text he wrote. If you buy it off of the WF most popular kit, it's recommended to use the Rancho geometry correction brackets or a set of front lower control arms.

2.5 and up will almost always benefit from caster correction.

A front track bar would be nice but it isn't a game changer.
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Old 01-08-2016, 08:45 AM   #25
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You can see that the poster bought the AEV geometry brackets to go with that kit, based on the text he wrote. If you buy it off of the WF most popular kit, it's recommended to use the Rancho geometry correction brackets or a set of front lower control arms.

2.5 and up will almost always benefit from caster correction.

A front track bar would be nice but it isn't a game changer.
I assumed the bracket he was speaking of was the one in the pic which is for the rear. That makes sense though. I know just with my Leveling kit you could tell a slight difference in the steering, so a 2.5 lift that will likely give you closer to 3 with no armor etc. would be certainly be worse. I would certainly not skimp on upper or lower FCA, and a trackbar would be soon to follow
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Old 01-08-2016, 12:25 PM   #26
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Originally Posted by BlackburnD View Post
For everyone running this, how are the road manners? I see some rear geometry correction, bet zero in the front. I just find it hard to swallow that the JK needs no geometry correction at 2.5in lift
Quote:
You can see that the poster bought the AEV geometry brackets to go with that kit, based on the text he wrote. If you buy it off of the WF most popular kit, it's recommended to use the Rancho geometry correction brackets or a set of front lower control arms.
Quote:
I assumed the bracket he was speaking of was the one in the pic which is for the rear. That makes sense though. I know just with my Leveling kit you could tell a slight difference in the steering, so a 2.5 lift that will likely give you closer to 3 with no armor etc. would be certainly be worse. I would certainly not skimp on upper or lower FCA, and a trackbar would be soon to follow
2.5 and up will almost always benefit from caster correction.
A front track bar would be nice but it isn't a game changer.


Here is the AEV correction bracket that I got.
AEV JK Geometry Correction Front Control Arm Brackets - ANth20410AD

I believe in the TF install video, they say that 2.5" still keeps the front end in adjustability range. With my winch and bumper, I figured that I will be needing to put in a leveling puck once the springs have settled. So I went with the AEV because of the 2.4 - 5" range of correction. The Rancho is a one position, but works for most from what I hear (2.5-3"). I did like the fact that the Rancho was a one-piece unit.

The rear is sitting a 1/2" lower than the front. The springs should settle by spring.


You can see from the pic that the front UCAs were put in the middle hole of the AEV bracket then moved to the upper hole.



Alignment sheet after CA put in the upper hole.













From AEV Drop bracket vs Adjustable Control Arms

Please note: Adjustable Control Arms are not a replacement for drop brackets - Its often misunderstood that higher priced adjustable control arms have the same effect as AEV's control arm brackets and that the brackets are just a cheaper option than providing adjustable control arms. Nothing could be farther from the truth, both components do separate and different things and both have their place under a Jeep. Both products can adjust the castor angle which is where much of the confusion stems from.
AEV's drop brackets change four distinct parameters:

  1. - Lowers arm angle for ride quality.
  2. - Lowers the instant center for better braking (antidive).
  3. - Decreases operating angle of the driveshaft by reducing the range of travel.
  4. - Corrects caster angles.
Adjustable control arms can certainly allow the proper caster angle to be dialed in, however they are incapable of all the other parameter changes, and in fact make the instant center, ride quality and driveshaft angles all worse than stock. Adjustable control arms can do some things that the drop brackets can not:
  1. - Move the axle position forward or aft which may be required with aftermarket HD axles.
  2. - Change the pinion angles for aftermarket Cardan or Double Cardan driveshafts.
  3. - Correct minor deviations in suspension geometry after an accident with mild frame damage.
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Old 01-09-2016, 06:49 AM   #27
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I have a 2012, 2.5 rubicon express coil kit with the monotube shotck (5100's) 35x12.5x17 ko2, tires are super quite..

This is before I changed out the fenders.




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