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JKS JSPEC 2.5 Inch Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door)

Item J103257
ExtremeTerrain no longer carries the JKS JSPEC 2.5 Inch Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door). Please check out Jeep 3-3.75" Lift Kits for an updated selection.
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    Review & Installation Video

    The JKS Jspec two and a half inch lift kit for your 2007 and up four-door JK is going to be a very well built and very complete lift kit that's going to perform very well on road and off the road. Now the J control version of this lift kit is going is going to be more expensive. It's also going to include some additional components, like some control arm brackets to help correct for your pinion and your caster angle in the front of your Jeep, where this kit is not going to have that. So can you run two and a half inches of lift without any sort of caster and pinion correction? Yes. If you decide you do wanna run some sort of pinion or caster correction, you can always add a set of control arm brackets or a set of adjustable control arms which will also add some articulation to your jeep. We'll talk a little bit more about that in just a second.A kit like this that's at two and a half inches is going to be for those of you who wanna run roughly a 35-inch tire, still have some room to flex, that's going to be a combination that looks really good but also works very well on-road and off-road. Now JKS does provide a very well built, well put together lift kit that does include a set of Fox shocks. And even though these aren't the top of line Fox shocks, this is still going to drive the price of this lift kit up a little bit. So when you're looking at JKS, you should expect a well built fairly complete kit, however, you are going to pay a little bit more because of the quality of the components that are included.This kit includes a set of four new coil springs which are going to provide those two and a half inches of lift, and these are going to be a dual rate coil spring. Now there's much to debate about what is best, a linear, dual rate, triple rate, or a progressive rate spring. The dual rate that come in this kit are going provide a fairly comfortable ride when you're at ride height, but also a slightly stiffer spring when you do get down to close to a coil bind situation. So they're going to be good for off-road as well as on-road.As I said, this does come with a set of Fox shocks for that new taller ride height. These are going to be Fox Adventure Series 2.0 shocks. Now these aren't going to be the T6061 aluminum that the higher end Fox shocks are, these are going to be an alloy that are covered in a powder coat finish, instead of just a clear anodized finish, but either way, they're still going to provide a really nice ride. These are going to be a nitrogen charged shock. And the nitrogen charged in that shock is there to eliminate any sort of bubbling or cavitation that you can get in the shock fluid when you work that shock really hard over time. Working a shock over a long period of time or hitting some higher speed washboards can cause some shock fade, and a nitro shock will have a lot less of that, help to eliminate any kind of shock fade. Now in general, a nitro shock will ride harder than a hydro shock, but most of the ride quality does come down to valving, and that's something a Fox does really well. So you're still going to get a comfortable ride from these shocks while still getting the benefits of that nitrogen charge.Here you have a front track bar that comes in this lift kit. This is going to be an adjustable track bar that's much stronger than the factory bar. The factory track bar can start to flex when you get a larger tire on your Jeep. This is going to give you zero flex, so you're not going to have any wobble type feeling, and this is of course adjustable, so you can fully center that front axle underneath the Jeep. Over here you're going to have a rear track bar bracket. This doesn't provide you with quite as much adjustability as some of the other ones out there, you're not going to be able to change the roll center, it doesn't give you three different positions for mounting your track bar, however it is a very well built, very stout track bar that's going to get the job done, moving the mounting point up a little bit, flattening out the track bar angle, and working very well to get you back on the road again.Over here you have a set of JKS quicker disconnects for the front of your JK after you get your lift kit installed. And I really like these sway bar disconnects. These are going to be adjustable so you can get the length exactly where you want it, and you can disconnect these from not just one side but both sides, allowing you to completely remove them and through them in the Jeep, as opposed to some of the others that just allow you to disconnect from one side and then fold them up out of the way. These are also gonna be greaseable, they fit very tight, so you're not gonna get any rattles, and because they are greaseable and made of high-quality materials, they're going to last you a good long time. The kit's also going to include all the hardware necessary to get it installed, as well as some brake line relocation brackets that are going to be necessary to ensure you don't pull a brake line taut when you're off-road. This is gonna be a two outta three wrench installation that will take three hours to get it done. This isn't a kit that includes control arms, so you're not going to have to do that additional work, which will cut down on the time a little bit. You're gonna wanna have a socket set and some wrenches handy, of course a jack and some jack stands. If you have access to a lift and either pneumatic tools or electric tools, it'll definitely speed the process along. And I always recommend spraying all of the applicable nuts and bolts with a good penetrating oil well before you get started. That time spent is going to pay dividends in the end, speeding up your installation. Now, with any lift kit, the first step is going to be jacking up the Jeep and supporting it by the frame, then removing or loosening anything that keeps the axles from completely drooping. So that's going to be your sway bar end links, your brake line brackets, your track bars, and of course your shocks. That'll allow you to completely sag those axles and pop out the factory springs. At that point, you can replace your factory springs with your new taller springs, and as you reassemble, swap in your new components. So bolt up those new shocks, new sway bar end links, and track bars, and track bar brackets as you're reinstalling all of those parts. Again, this is something that's probably gonna take you around three hours, give or take, depending on the tools you have at your disposal, but it is something you can do in your drive way.This is a $1,200 lift kit, and a lot of that cost does come from the Fox shocks. Fox does make a premium product, they do charge a little bit more for them, and even though these aren't Fox's top of the line shocks, they are gonna be more expensive than some of the other kits out there that have a more no name style of shock with them. But you're not just paying for the shocks with this, you are getting a lot of components and you're getting a lot of high-quality components from JKS, which are going to make this lift kit ride really well and last a long time. So, in my opinion, this is worth the $1,200 price tag. So if you're looking for a high-quality two and a half inch lift kit, I definitely recommend the JKS Jspec two and a half inch, that you can find right here at

    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation


    • 2.5 Inch Jspec Suspension Lift
    • Includes Jspec Custom Valved Gas Series Shocks
    • Accommodates Up to 35 Inch Tires
    • Front Quicker Disconnects Included
    • Provides Superior Control
    • Lifetime Limited Warranty
    • For 2007-2018 Jeep Wrangler JK Unlimited Models


    Gain Stability. If you want to gain stability and ground clearance on your 4-Door Jeep, you need to know that you can get it. With the JKS Jspec 2.5 in. Lift Kit, you will be able to provide your Jeep with a 2.5-inch lift, which will allow you to accommodate tires up to 35 inches in size. With your new lift, you will be able to tackle any terrain that you feel necessary without a problem. Made from quality, high-tensile steel, you will find that the pieces included in this kit are corrosion free and built to last a lifetime.

    Jspec Shocks. The JKS Jspec 2.5 in. Lift Kit comes with quality Jspec Custom Valved Gas Series Front and Rear shocks. These shocks are designed to provide you with better ride quality and supreme control over your Jeep.

    Front and Rear Springs Included. When you purchase the JKS Jspec 2.5 in. Lift Kit, you will find that the kit comes with both front and rear springs in it. These springs will help provide you with a comfortable ride and impact on the terrain will not affect you.

    Stay Centered. One of the nice things about the JKS Jspec 2.5 in. Lift Kit is that it comes with an adjustable front track bar that will allow you to stay centered. The track bar will make sure that you do not feel any type of wobble, even at high rates of speed. You will be able to take the track bar adjustable bracket and adjust your front track bar as needed to accommodate your needs.

    Kit Contents. In addition to the quality shocks and track bars included, you will find that this kit comes with brake line relocation brackets, front sway bar disconnects, and bump stop extensions too.

    Moderate Difficulty of Installation. The JKS Jspec 2.5 in. Lift Kit comes with a moderate level difficulty of installation. It is important that you do have some knowledge of mechanics before you install this kit. You can expect installation to take about 6 hours and all components/hardware are included in the kit for you.

    Warranty. JKS warrants to the initial retail purchaser that your JKS product shall be free of defects in material and workmanship for the life of the initial retail purchaser for so long as you remain the original owner of the JKS product. Some exclusions may apply, please see manufacturer's warranty for complete details.

    Application. The JKS Jspec 2.5 in. Lift Kit is specifically designed for 2007-2018 Jeep Wrangler JK Unlimited (4 door) models including Rubicons.

    Please Note. 2012-2018 models may need an exhaust spacer kit for installation.

    Fitment: Details

    CA Residents: WARNING: Cancer and Reproductive Harm -


    Customer Reviews (44)

    Write a Review

    Ratings Summary

    4.7 out of 5 overall rating from 44 customers

    Installation Time: Full Day

    Installation Cost: $500-$1000

    • June 14, 2019

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door)

      4 2017 Wrangler - RogerM Installation Time: Full Day

      2.5 inch lift that gave a little more

      Ordered the JKS 2.5 inch lift. As usual, it took longer to install than they said. About 8 hours using commercial lift and tools. Measured front and rear ride height at fender before installation, results measured 4 inches of lift front and rear. Don't know if the original springs settled but I like the knew look and ride. No complaints, just a little tuff to install.

      Helpful (2)
    • January 25, 2019

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 2 Door)

      5 2010 Wrangler - TroyS Installation Time: Afternoon

      smooth install

      great instruction's , every things is included , super high quality components, very happy

      Helpful (7)
    • December 03, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door)

      5 2018 Wrangler - DouglasC Installation Time: Afternoon

      First Jeep Owner

      Full complete 2.5 inch lift kit was very easy to install. Installed lift kit,mounted and balanced five wheels and tires,centered front axle, and set toe in six hours with a little help from a friend. Have not done any hard core off road driving at this time. Vehicle handles much better on road with a little stiffer ride. Overall very pleased with JKS lift kit.

      Helpful (8)
    • November 13, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door)

      4 2015 Wrangler - Ryan Installation Time: Full Day

      Great Lift Depending on Your Situation

      This lift takes a bit longer to install than the video makes it seem but it goes in very easily and is well made. The FOX shocks are rough and I' already thinking about swapping those out ... they are just unforgivably stiff. I put 35" MT ATZ's on after this lift and i will admit the Jeep is struggling without updated control arms; the tires are just too heavy for the stock set up. So if you plan to stay 33" tires and under this kit is perfect. If you can find the same kit with different shocks even better but well designed by JSpec

      Helpful (10)
    • November 05, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 2 Door)

      5 2015 Wrangler - DjS Installation Time: Full Day

      Excellent lift kit

      This lift is set up great comes with everything you need to do a 2.5 inch lift. Even taking my time this was a easy install following the instructions. I did need to adjust steering wheel to center after trackbar adjustment which was not mentioned in instructions. Ride quality feels better than stock to me. I would highly recommend spending the extra money and getting this kit

      Helpful (8)
    • October 28, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door)

      5 2017 Wrangler - CollinP Installation Time: Full Day

      Well built

      Awesome lift kit for the money, took myself and a few people from my club around 8 hours doing it on the floor. We took our time though.

      Helpful (8)
    • October 20, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 2 Door)

      5 2008 Rubicon - paulg Installation Time: Afternoon

      Impressed with the ride

      I was very impressed with the ride what an improvement. The install was straight forward done in my garage with floor stands so not difficult. Power tools does make it much easier total time 5hrs with some help.

      Helpful (7)
    • October 20, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 2 Door)

      5 2015 Wrangler - FlaggD Installation Time: Full Day

      JKS rocks

      JKS is the way to go if your looking for the best and most complete kit out of the box. Well thought out and worth the money

      Helpful (8)
    • October 18, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 4 Door)

      4 2016 Rubicon - ChristopherF Installation Time: Afternoon

      Great suspension!

      Great suspension! Better than the stock Rubicon shocks, but I do highly recommend the beefier control arms for better handling. Be sure to re-torque every 500 miles.

      Helpful (9)
    • October 08, 2018

      Review shared from JKS JSPEC 2.5 in. Suspension Lift Kit w/ JSPEC Gas Shocks (07-18 Jeep Wrangler JK 2 Door)

      4 2014 Wrangler - DaveK Installation Time: Afternoon

      Kinda Stiff!

      Super solid build quality. Easy to install, but noticeably stiff in the on road driving area. Super bumpy off road.

      Helpful (7)

    Questions & Answers (34 answers)

    5 Top Rated Questions

    With this kit does it come with everything you need and do you recommend any esle to go with it

    • The JKS Jspec 2.5 in. Lift Kit will have everything you need to get your wrangler lifted and back on the road. You will want to be sure that you get an exhaust spacer with this kit if your wrangler is a 2012-2018 JK. Some suggested upgrades to this kit would be: Adjust Control arms/Control arm brackets. Another great upgrade to compliment this kit would be a rear adjustable track bar.

    Helpful (8)

    Would the rear track bar relocation bracket be strong enough for the long run or should I buy Rough Country Forged Rear Adjustable Track Bar?

    • The track bar and track bar bracket in the JKS Jspec 2.5 in. Lift Kit will be strong enough for light off roading and street driving, but for extreme off road, a forged track bar would be a good piece of insurance.

    Helpful (2)

    I see front geometry correction is one of the optional recommended upgrades. What about the rear? Any suggestions besides adjustable track bar?

    • Adjustable sway bar links are recommended to help correct the rear geometry. We do offer the JKS Front or Rear Adjustable Swaybar End Link kit for 0-6 in. lift (J18031).  Here is the link:

    Helpful (1)

    I see Teraflex uses front spring spacers and rear spring spacers to make up their 3" lift kits. My question is, can I use them spring spacers with JKS 2.5" kit to make it 3" lift and if so well it mess with the ride comfort?

    • Thank you for your question! You would be able to use spacers with this lift since this does not utilize spring spacers. However, these shocks are rated for 2.5" and would extend if adding a .5" spacer taking away from the life and max travel of the shock.

    Helpful (1)

    Does this comes with rear sway bar links like the tereflex does?

    • The JKS Jspec 2.5 in. Lift Kit (07-17 Wrangler JK 2-Door) does not come with rear sway bar links.

    Helpful (1)
    10 More Questions
    Hello, I was just wondering if this kit would work with stock wheels and tires? I'm looking to get 35x12.50 tires and 20x10 wheels, but the wheels i'm looking to get are on back order, and I'm just wondering if i can run this lift with by stock wheels until my new ones come in. Also as for the new wheels, do you see an issue with 20x10 wheels having a 4.75" backspacing and -18mm offset? Thanks! 1 answer
    Does this kit come with Fox Shocks or Jspec shocks? 1 answer
    Can purchase this kit without the shocks? I would like to get different shocks to use with this kit. 1 answer
    How much actual lift will you get out of the JKS Jspec 2.5 inch lift without changing tire height? 1 answer
    Is this kit for 2 or 4 door wrangler? Mine is 4 door and it says it will fit my Jeep? 1 answer
    What is the actual height increase without changing Tires? The current height of my 2016 Jeep is 72 inches. I have a garage that is 79 inches high. 1 answer
    this kit in the sku k103? I understand that this is for a left hand drive and does not indicate it. Thank you 1 answer
    What is the part # for the included track bar? 1 answer
    Hi would I be able to run tires that are 315/70/17s wheels 17x9 with 4.75 backspacing with no rubbing? 1 answer
    Will this kit work on the 4 door? 1 answer

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (2) Front Coil Springs
    • (2) Rear Coil Springs
    • (2) JSpec Front Shocks
    • (2) JSpec Rear Shocks
    • (1) Front Adjustable Track Bar
    • (2) Front Sway Bar Quicker Disconnects
    • (4) Brake Line Relocation Brackets
    • (1) Rear Track Bar Bracket
    • (4) Front and Rear Bump Stop Extensions
    • Hardware

    Tech Specs

    Will It Fit My Wrangler

    • JK Rubicon 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18

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