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Old 02-12-2017, 11:32 AM   #241
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I figured it out, I'm an Idiot. I was trying to put the rear lower control arms on the front lower. Guess taking a break and reading part list helps.

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Old 02-13-2017, 12:52 AM   #242
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Glad it worked out!

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Old 02-13-2017, 08:43 PM   #243
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That was supposed to say rear upper control arms to the front lower.

It took me about 15 hrs to do over 3 days. Would've been less if I didn't take off the front lower control arms and install the rear upper control arms in their place, then had to undo that screw up.

That was supposed to say rear upper control arms to the front lower. Getting the alignment done now. Tomorrow I will see how it rides.

Before, durning, and after, need to get the new 35s.
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Old 02-15-2017, 05:24 PM   #244
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The new mopar 4" lift kit

Quote:
Originally Posted by Crashthings View Post
That was supposed to say rear upper control arms to the front lower.



It took me about 15 hrs to do over 3 days. Would've been less if I didn't take off the front lower control arms and install the rear upper control arms in their place, then had to undo that screw up.



That was supposed to say rear upper control arms to the front lower. Getting the alignment done now. Tomorrow I will see how it rides.



Before, durning, and after, need to get the new 35s.


Looks great! It gives the jeep a strong stance. What bumper bar do you have on there?

I'm having my 4" mopar lift installed on Monday. Will be adding 35's and new wheels then as well.

I'd be interested to see how she rides... can't wait for it to be completed.




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Old 02-16-2017, 01:05 AM   #245
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Thanks, it's the Maximus-3 bar. I hope to get my 35's next week. To me, the ride is awesome. Little squirrelly, but smooth. Like you're floating. I like it.
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Old 02-17-2017, 01:47 PM   #246
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Ok, so an update on ours....

After nearly a year and a half, and 11k mi on the 4" kit (mostly wheeling), here is where we're at. As I mentioned in a previous post, we swapped out the front trac bar mount (prior to Mopar issuing a new one) with an EVO MFG one, and it has been flawless. We just replaced the rear one with the new one from Mopar after it nearly wore through the shock body. No issues with the new one, and plenty of clearance.

Now on to what I feel is the biggest debated issue with this kit....the caster cam bolts. We installed them (against better judgement) so we can present what the kit offered to our customers. Well, they didn't last. The cam washer wore through the little nipple on the axle housing, and the lower arm started shifting. Instead of fixing it (which is a band-aid now that the mount was drilled out), we used it as an excuse to swap the housing to a Pro Rock 44 housing and EVO lower from arms. We went with EVO because they are adjustable on the car without removal, and come with Currie Johnny Joints.

Running M/T 37's with beadlocks, and being able to dial in the caster (6 degrees built into the Pro Rock and the arms), it drives straight as an arrow, and has no float or wandering.

My advise is to avoid the caster bolts, and get adjustable lowers. For the price, it's about the best bang for the $$$.
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Old 02-17-2017, 04:37 PM   #247
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Not good

So, I found this site recently and post this because we had a recent problem-

My wife and I purchased Mopar 4" lifted 2017 JK, we drove the 4" lift and the 2.5" Mopar dealer installed lifts on the same day.

We wanted a 4" lift, and liked the jeep it was on. The jeep with the 4" Mopar lift it was all over the place during the test drive. Regardless of the road crown,...the steering was vague and delayed and it made correcting it a busy driving process and there was something beyond being a 'jeep thing' -beyond normal steering for lifted and not comparable to the 2.5" lift we drove on the same day.

The sales department spoke to the service department and told us it was correctable and that they would have it driving the same as, or nearly the same as the lower 2.5" lifted one we drove. Great. Trusting this was possible we gave a deposit and were to come back before the following weekend to test drive it after they installed the adjustable cam bolts and made some adjustments.

When we went back to the dealer to pick up the jeep, it seemed improved but still not great compared to the 2.5 inch lift. It still needed more steering inputs/ corrections and was not responding to initial turns or smaller corrections well. The steering was a little more responsive and the front end seemed tighter than the first test drive. The dealer said they had installed the cam bolt kit which was not on it the first time we drove it and adjusted the lift. We did buy the jeep/ with the Mopar 4" and though it was better. We then spent a day nearby with friends not driving a lot and then drove home the next day, Sunday...

Fortunately we were on a lower speed road, going maybe 35-40mph at night, after getting off the faster highway, (because we were intermittently taking the highway to the next exit then going back to slower roads to vary engine rpm for break-in and to see how the jeep was on the highway.) On this well paved road- the jeep veered to the left after a small bump, and kept going that way....it was very delayed in responding to a steering correction, then after the steering correction took effect it went to the right and continued longer than the steering input taking up more than our road lane,...this was not a wobble, something seemed no longer functioning...at first I thought something broke in the front end.

Slowly rolling to a stop we got to the side of the road. I was glad I was driving and did not react with too much brake or steering and let it come to a gradual stop- trying to not unbalance anything further. We got out looked at the front end but it was dark, so we unloaded our dog and stuff, left the jeep on the side of the road overnight, and stayed at a hotel nearby getting a cab to pick us up. Was disappointing to say the least.

The next day on Moday- I got the jeep to a garage near the spot where we pulled over- while my wife waited at the hotel. We got it up on a lift and saw the rear track bar was hanging down from the frame not connected to the bracket attached to the axle. The rear axle was able to affect the steering without the track bar. The bolt backed out but was still in the hole, the nut fell but was caught by bracket.

The garage put the track bar back in place, tightened up the bolt/nut, and also checked other bolts, and the front end alignment. We also found the castor was way out of range even with the castor adjustable bolt kit installed. I watched them check the alignment multiple times and check everything else as well. We just made sure everything was tight so I could get home.

So now I will to take our brand new Jeep to a suspension shop that actually knows about lift kits and components. I hope to determine why this thing handles so bad and if there are more issues going on aside from the castor problem or if a single component or two might work as the other posts mentioned already. Obviously the rear track bar was not even tightened and we could of been in a serious accident but thankfully we were not. It seems like Mopar did not put much testing or development into the components of this lift kit. It has shiny fox shocks- yea, but what about the geometry and other components? It does not steer or ride well and the components seemingly do not allow proper geometry even for a jeep.

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Old 02-18-2017, 11:57 AM   #248
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From your experience, I believe it is safe to reason, It's not a lift issue, it's an install issue. We use our Mopar 4" lift. We did add a few extras during the lift to better suit our build needs because of research and experience. Welded on front and rear track bar brackets and adjustable front lower control arms to adjust caster instead of the cam bolts. We used a reliable and reputable independent place to have the lift done. That shop had installed more than a dozen of the 4" lifts ahead of ours with no issues.

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Old 02-18-2017, 02:06 PM   #249
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Went with 315 70 17s. Discount tire wouldn't install 35 12.5 17 because of stock rims. 315s are about 34.5 so I'm ok with that. I think it looks good.

I went with the straight kit, no extras. I'll keep an eye on the cam bolts, if I have a problem I will go with an adjustable.

I did talk to Jeep when they did the alignment, they said they charge 10hrs to put on the lift. @ $120, so I saved $1200 by putting it on myself. Almost paid for the new tires.
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Old 02-18-2017, 11:03 PM   #250
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What gearing is everyone running? I'm writing a fat check on Monday for the lift, tires, and wheels - but am not doing anything with gears yet.

'17 Jkurhr currently at 3.73. Lots of highway DD so will see how she feels and monitor rpms.


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Old 02-18-2017, 11:59 PM   #251
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Anyone know or can measure how long the rear control arms are on these kits? A set of 4 can be had for $100. In the market for non adjustable...so this might do the trick.
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Old 02-19-2017, 07:48 PM   #252
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After 15 hours the lift kit install is finally done. I went with JKS control arm drop brackets instead of the cam bolts. I also went with JKS adjustable front and rear track bars rather than the supplied brackets. It wasn't too bad of a lift to install, but rolling around on a garage floor for the first time in almost three years was a bit rough. The ride is a little firmer than the stock ride with less body roll. one thing is for sure, I am feeling a lot more through the steering wheel now than when it was stock, but it isn't an out of control feeling.
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Old 02-20-2017, 12:40 AM   #253
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Quote:
Originally Posted by Whobeme View Post
After 15 hours the lift kit install is finally done. I went with JKS control arm drop brackets instead of the cam bolts. I also went with JKS adjustable front and rear track bars rather than the supplied brackets. It wasn't too bad of a lift to install, but rolling around on a garage floor for the first time in almost three years was a bit rough. The ride is a little firmer than the stock ride with less body roll. one thing is for sure, I am feeling a lot more through the steering wheel now than when it was stock, but it isn't an out of control feeling.
Wow, I'm just the opposite. I think it has more body roll and a lot smother ride than stock. Maybe its the JKS then. But I do feel more in the steering wheel. I think it's probably the high steer.
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Old 02-23-2017, 11:07 PM   #254
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I just picked up the Jeep - had my dealer install the 4" mopar kit. I didn't change anything out - everything that came with the lift, went on the Jeep. Also added wider Ballistic Jester wheels and Hankook Dynapro tires.

First off - I definitely underestimated how much bigger the Jeep was going to be. She is a BEAST.

Once I got behind the wheel and hit the road, I could feel the jeep pulling to the left. Once I hit highway speeds, the steering just felt 'loose'. It reminded me of my '95 YJ... feeling like it wanted to bounce all over the road.

I'm calling the dealership in the morning, but wanted to see if anyone else felt anything similar? Hoping it is just an alignment issue, but the loose steering is bothersome.

Is there any tweaks I can make before hauling her back up to the dealer?

Also just ordered 2 front mopar splash guards.


Thanks,
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Old 03-02-2017, 10:54 PM   #255
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Originally Posted by JRome View Post
I just picked up the Jeep - had my dealer install the 4" mopar kit. I didn't change anything out - everything that came with the lift, went on the Jeep. Also added wider Ballistic Jester wheels and Hankook Dynapro tires.

First off - I definitely underestimated how much bigger the Jeep was going to be. She is a BEAST.

Once I got behind the wheel and hit the road, I could feel the jeep pulling to the left. Once I hit highway speeds, the steering just felt 'loose'. It reminded me of my '95 YJ... feeling like it wanted to bounce all over the road.

I'm calling the dealership in the morning, but wanted to see if anyone else felt anything similar? Hoping it is just an alignment issue, but the loose steering is bothersome.

Is there any tweaks I can make before hauling her back up to the dealer?

Also just ordered 2 front mopar splash guards.


Thanks,
Jerome
Wondering if you ever got the problems you mentioned fixed. I'm thinking of getting this kit.
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Old 03-03-2017, 01:20 PM   #256
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Wondering if you ever got the problems you mentioned fixed. I'm thinking of getting this kit.


I haven't fixed it completely yet. Out of the shop, the tires were inflated to 41 psi.. once I dropped it to 34 (currently there - going to drop to 32 this weekend), the ride softened up. I had another alignment done and they swapped my front 2 tires.

There is still a slight pull . On another thread, ppl were saying to add adjustable lower control arms and that should help. Others said once the suspension broke in a bit - it straightened out.

I'm gonna run her as is, as it's close to stock feel now, to break it in before I do anything else.

I would recommend the kit and would go this route again.




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Old 03-04-2017, 02:47 AM   #257
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Love ours. Wife Can hold her own with the group. She loves it. When funds allow, I'm planning a long arm for mine. We immediately started with front adjustable lowers and different weld on brackets. The Fox steering stab, because it is pressurized, can slightly pull it left. It's the stabilizer on ours, not the alignment, and the slight pull has reduced to nothing over the last 10,000 miles of fun.

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Old 03-05-2017, 06:52 AM   #258
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Lower your tires to 28 psi , and do the chalk test on them . It should ride a lot better. Mine pulled to the left also at first until it was broke in.
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Old 03-06-2017, 03:08 PM   #259
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Lower your tires to 28 psi , and do the chalk test on them . It should ride a lot better. Mine pulled to the left also at first until it was broke in.


Will get down to 28 psi tonight and see how she rides.

I have noticed that once I get up to around 50 MPH, I'm picking up a vibration in the steering wheel.... could this also be attributed to the tires running at a higher psi?

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Old 03-07-2017, 06:17 AM   #260
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Your tires might be also out of balance. Do the vibration go away then st a faster speed?
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Old 03-07-2017, 03:05 PM   #261
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Your tires might be also out of balance. Do the vibration go away then st a faster speed?


The wheel starts to pulsate around 45 mph and may start to soften around 60 mph or so...


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Old 03-09-2017, 07:12 AM   #262
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It sounds like your tires are slightly out of balance. Did you reset your computer for the bigger tire size? That affects your speedometer and shifting points.
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Old 03-10-2017, 11:17 AM   #263
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The shifty steering and pulling abruptly is because the with the higher 4" Mopar lift the castor is just not in a range of stability. The control arms on the front are too short. There are multiple issues going on with our jeep including the dealer put the Cam bolt kit in wrong making the steering even more unstable.

(I probably would not be here if our rear track bar popped out at highway speeds or on an exit ramp, as I previously posted. It was incontrollable at 35 mph on a two lane road, when it happened. This was an install problem but the brackets they attach to may be a problem too. The rear end can affect whether the jeep drive straight as well, not just the front.)

We put longer adjustable front control arms in, removed and correctly installed the cam bolt kits, did three full alignments and will next address the track bars and if those brackets were installed or designed properly. It's significantly better but does not drive straight and we have not addressed if there are any rear end issues causing this.

We did one change at a time and tested each change. The dealer in this case simply denied knowledge of any issues ever and said they never have problems- great, thank you, so helpful. So we will address this dealer aspect after we understand the install and design problems entirely.

I like the idea of a 'Jeep' but I have better things to do with my time than figure out how to make a jeep drive safely and controllably on the road. I would not buy a new jeep in hindsight, and am surprised the dealer does not care whatsoever, yet sells lots of jeeps and lift kits. I would talk to an experienced specialty shop and never trust a dealer as they just say whatever it takes to sell a jeep and keep you in the dark.
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Old 04-23-2017, 02:27 PM   #264
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This lift is turning out to be a problem. I have heard that they have suspended sales pending a redesign on brackets that have been failing at a pretty high rate...

Steer clear!!!

Info from the service manager at local Jeep dealer...

was this issue ever fixed i got the 2in molar lift but thinking i want yo do 4in now so i'm a bit torn as to which way i should join terms of reliability. thanks
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Old 04-23-2017, 07:31 PM   #265
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Mopar 4" lift

Well I can chime in on a review in a couple weeks....My Mopar 4" lift is being installed as we speak....But by a specialty shop my dealer uses that I'm sure we all heard of....4WD Hardware. I don't trust a dealer to install everything I ordered, including 4.88 gears.
I went with Teraflex adj. control arms instead of cam bolts and went ahead and put lifetime teraflex Ball joints since I'm doing 37's.
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Old 04-24-2017, 09:38 AM   #266
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was this issue ever fixed i got the 2in molar lift but thinking i want yo do 4in now so i'm a bit torn as to which way i should join terms of reliability. thanks
I haven't spoken with the service manager that I know about this lift in quite some time. I do see quite a few people posting in this thread still having significant problems with this lift. Specifically the failure of the cam bolts is disturbing and the significant drive-ability issues.

There are so many really good lifts that the issues with this one would keep me away.

The 2" on the other hand is turning out to be a winner, again as long as you don't use the cam bolts and install control arms or geometry brackets.
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Old 04-25-2017, 09:08 AM   #267
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I haven't spoken with the service manager that I know about this lift in quite some time. I do see quite a few people posting in this thread still having significant problems with this lift. Specifically the failure of the cam bolts is disturbing and the significant drive-ability issues.

There are so many really good lifts that the issues with this one would keep me away.

The 2" on the other hand is turning out to be a winner, again as long as you don't use the cam bolts and install control arms or geometry brackets.
I agree with those two issues being the most talked about since the initial correction of the brackets that were failing at the onset of this kits release. I have addressed the one issue being No Cam bolts.... the second is the drive-ability ( FOX steering stabilizer being overcharged with gas) pulling the jeep to the left. I have to return to 4wd hardware in 1 month to re access all bolts and any issues I find. If need be I will swap out the Fox stabilizer it came with to a Fox ATS stabilizer, over kill, maybe, but much better option overall. I had the luck to drive a couple of these 4" lifts prior to ordering mine, both on country roads and at highway speed, and they drove pretty darn good compared to my 2006 LJ with a Clayton long arm lift. Time will tell.
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Old 04-26-2017, 04:52 PM   #268
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Yes to the overcharged Fox SS pulling left. Ours was replaced under warranty with noticeable reduction in left pull. Not completely gone. No tire wear issues after 10,000 miles so we are satisfied alignment has maintained its settings. We used Synergy brackets and their adjustable lowers from the start. We didn't attempt to use the stock brackets or cam bolts just due to installers experience and we were welding structural support elsewhere already. All our brackets are welded on. No issues with any other components of the lift. Several in our group are running it in our same config with zero issues. We have one person who opted for adjustable uppers and the stock fixed lowers. Still zero issues. None of us are running with cam bolts and none with relocation brackets. This lift runs all around the rocks of SoCal and in Mojave on rocks several times a month with zero adjustments necessary to date. My wife doesn't avoid anything. White one ahead of her is a Fabtech long arm on 37's. Ours is the Sunset orange with the Mopar 4" as in the sig. It's no long arm but it has been solid.


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Hers - 2015 JKURHR Sunset Orange, Mopar 4", Synergy adjustable LCA's, MT ATZ 315, AEV tire carrier, Rock Hard aluminum skid plates, Gra Bars, SpodSE, ARB twin, + more. Her miles of smiles make me do it.

His - 2015 JKURHR Baja Yellow, Stock and feeling left out . Mod time is getting closer.
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Old 04-26-2017, 08:41 PM   #269
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Originally Posted by Michrtb View Post
Lower your tires to 28 psi , and do the chalk test on them . It should ride a lot better. Mine pulled to the left also at first until it was broke in.
+1
Driving mine home after the lift, wheels, and tires it was squirrelly. Got home, the dealership had the KO2's aired up between 48 and 49 psi! Totally different now that I have the fronts at 30 and rears at 28.
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Old 04-27-2017, 09:32 AM   #270
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Location: Pa
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Originally Posted by Bad Habit View Post
Yes to the overcharged Fox SS pulling left. Ours was replaced under warranty with noticeable reduction in left pull. Not completely gone. No tire wear issues after 10,000 miles so we are satisfied alignment has maintained its settings. We used Synergy brackets and their adjustable lowers from the start. We didn't attempt to use the stock brackets or cam bolts just due to installers experience and we were welding structural support elsewhere already. All our brackets are welded on. No issues with any other components of the lift. Several in our group are running it in our same config with zero issues. We have one person who opted for adjustable uppers and the stock fixed lowers. Still zero issues. None of us are running with cam bolts and none with relocation brackets. This lift runs all around the rocks of SoCal and in Mojave on rocks several times a month with zero adjustments necessary to date. My wife doesn't avoid anything. White one ahead of her is a Fabtech long arm on 37's. Ours is the Sunset orange with the Mopar 4" as in the sig. It's no long arm but it has been solid.


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Originally Posted by wchutt View Post
+1
Driving mine home after the lift, wheels, and tires it was squirrelly. Got home, the dealership had the KO2's aired up between 48 and 49 psi! Totally different now that I have the fronts at 30 and rears at 28.

Well I just bit the bullet and added the Fox 2.0 ATS SS to the build sheet before I take possession....why even worry about it I guess. I have heard the "pulling to the left" complaint more than any other complaint about this lift and to boot, I called Fox and they are aware of it because it is designed for off road applications. I also been in contact with Mopar before deciding on this build and they also are aware this is an issue and both fox and Mopar engineers recommend the ATS SS over the Fox SS that comes with the kit.

I also have read a lot of threads on psi pressure of the tires.....and I'm taking that advice 100%. I told 4wd hardware to air them to 30ish for now and I will adjust accordingly. Trying the newish 37" Ridge grapplers since I want the look of the Trail grap with more road manners of a All terrain tire.

I've scoured threads and different forums for info in this lift for 6 months and did a lot of homework and calling around, but in the end the jeep community offers indispensable information.

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