TeraFlex Sport S/T2 Suspension Lift Kit 2-1/2" With Falcon 3.1 Shocks 4-Door Jeep Wrangler JK 2007-2018

MSRP $2,444.99
You save 10%

TeraFlex 2-1/2" Sport S/T2 Suspension Lift Kit with Falcon 3.1 Shocks for 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 4-Door Jeep JK Wranglers.

If you're a Jeep enthusiast who wants the same level of performance on the highway and on the trails, then this TeraFlex 2-/12" Sport S/T2 Suspension Lift Kit with Falcon 3.1 Shock Absorbers is exactly what you need. This lift kit is for all 2007-2018 four door Jeep JK Wranglers. The improved Street and Trail suspension system builds on TeraFlex's 1.5" S/T kit by adding both preset front lower Sport flexarms and a rear track bar bracket. It will give you the performance you want without compromising range of motion or stability.

S/T2 Suspension System 1312031 Features and Benefits:
- Delivers true street and trail (S/T) performance
- Positive response handling
- Reduced noise, vibration and harshness (NVH)
- Preset Sport flexarms optimize correct caster and pinion angles for 2.5” lift kits
- High-quality, maintenance-free factory-style bushings provide excellent vibration damping and ride quality
- SpeedBump progressive bump-stops provide progressive compression during high-speed suspension movement
- Full range of movement for off-road flex and articulation
- Bolt-on installation with some modifications necessary
- Made in the USA for quality assurance
- Fits 2007-2018 4 Door Jeep JK Wranglers, including Unlimited model

*Cutting of the factory bump stop mounting locations is required.
*HD Forged Adjustable Front Track Bar (P/N: 1753418) is recommended.

This lift kit (P/N: 1312031) is the ultimate street and trail upgrade for your JK. No alignment is needed because the preset lower Sport flexarms optimize correct caster and pinion angles for 2.5-inch lift heights. This kit allows for fitment of larger tires (up to 35") without compromising on and off road prowess. The included bushings provide vibration damping and ride quality for particularly bumpy trails or roads under construction. Overall, this kit features reduced noise, vibration and harshness. The SpeedBump Progressive bump stops compress progressively during high speed suspension movement while the entire kit allows for a full range of motion for off-road flex and articulation. Installation takes approximately six hours, so you'll be back out there in no time.

Lift Kit Specs:
- Lift: 2.5 inches
- Max Tire Diameter: 35 inches
- Install Time: 6 hours

Kit Includes:
- 2.5” lift coil springs 
- Two (2) preset Sport Flexarms (front lower) 
- SpeedBump bump stops 
- Front brake line anchor kit 
- Front sway bar disconnects 
- Rear track bar bracket 
- Rear sway bar links 
- Exhaust spacers 
- Four (4) Falcon Series 3.1 Piggyback Shocks 
- All necessary hardware

Please Note: This lift kit requires aftermarket wheels with 4.5" of backspacing or less. To use factory wheels, you will need the Offset Wheel Adapters (P/N: 1055000).

The included Falcon 3.1 piggy back shock absorbers deliver the best dampening characteristics possible to maintain a smooth ride on the highway or on rough trails. The 2.25” 6061-T6 aluminum shock body is the largest able to be installed without any modifications to your Jeep. The aluminum also resists wear and heat and protects the internal components from damage caused by the elements and long-term use. The piggyback design keeps the shocks from being damaged by kicked up debris. The front shocks, which are offset by a stud for additional frame clearance during articulation, have the reservoir position horizontally to increase clearance for large tires. The rear shocks have the body and reservoir positioned at the bottom to eliminate shaft damage from rocks or high obstacles.

Falcon Series 3.1 Piggyback Shock Features and Benefits:
- 6061-T6 precipitation-hardened aluminum alloy shock body resists wear
- 2.25” shock body provides optimal performance
- Smooth honed internal shock body surface for long term performance
- 3/4” shaft to prevent shaft buckling
- 1-piece Teflon bronze piston wear band with O-ring
- OGS the oil/gas separator prevents cavitation
- Digressive linear piston
- Piggyback fluid passage design flows 6 times more oil
- Uses Red Line full synthetic shock oil
- Increases vehicle stability
- Improved dynamic roll control and low speed damping
- Optimized fitment for clearance during full suspension travel
- Front offset stud design creates additional frame clearance during articulation
- Induction hardened chrome plated shaft resists rock damage and corrosion
- 1,000-hour salt spray corrosion resistance test on all hardware

Order this TeraFlex 2-1/2" Sport S/T2 Suspension Lift Kit with Falcon 3.1 Shocks for your 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 or 2018 4-Door Jeep JK Wrangler from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Installation Difficulty


Advanced skill is required for this installation.

Installation Videos

Video Transcript

Today on CJ Off-Road, we're gonna lift our Jeep with the help from TeraFlex.

If you're looking to upgrade the suspension of your 2007 to 2018 Jeep JK Wrangler, today, we're gonna be installing this TeraFlex suspension's ST2 system featuring the 3.1 Falcon shocks onto our 2008 Jeep Wrangler. This TeraFlex ST2 suspension lift kit is going to be perfect for the street and trail. It features the Falcon 3.1 shocks, front lower control arms, brand new coil springs, and everything you need to get it bolted up. It includes extended bump stops, brake line relocation brackets and all the hardware necessary to get your Jeep up in the air safely. It's going to give you better off road flex and articulation and really increase the performance of your Jeep Wrangler. With that being said, we're gonna get it installed in our 2008 Jeep Wrangler.

To complete this installation, you're going to need a lift or a jack and jack stands, as well as a well-stocked mechanic's toolbox. You're going to want to have deep sockets as well as some short sockets to help you along in the process.

As you can see, we've got our jeep up on the lift. The front suspension has been removed as well as the wheels and tires. We were running an aftermarket lift before this. However, we're gonna show you a short clip now on how exactly to remove the front suspension on your JK Wrangler.

We're at the front of our Jeep and the first step is actually to disassemble and remove all of the factory components. We're gonna start with the sway bar end links, remove the lower track bar bolt and then remove the shocks. Let's get started now.

Once you have the front sway bars removed, you can take the factory bolts and hardware and just toss it aside. The kit actually comes with new sway bar links and new hardware. With the front axle supported, we can remove the lower shock mounting. It uses two 18 millimeter, one on the outside and one on the inside. Once you pull the shock hardware out, make sure you hang onto it. You'll be using it for your new shocks. With the lower shock bolt removed, we can now remove the upper stud.

Now that we have the shock and sway bar link removed from this side, we're actually gonna remove the entire track bar. This is gonna let the axle droop more to the taller springs in. We're gonna start with this bolt here, work our way down to the other end.

Now we're gonna move onto the lower mount of the track bar. We actually have our steering stabilizer onto a separate bracket here. Let's get that pulled off and then we can pull off the lower track bar bolt.

With everything disconnected, it's now time to lower the front axle and remove the factory springs. Once the front bolt's removed, we can move onto the rear and you can pull the control arm out. Now that you've got your factory suspension removed, the first thing we're gonna tackle is the springs. Before we can put those on, we've actually gotta pull out this factory bump stop and install the new TeraFlex bump stop that's included with the kit. Let's get started. As you can see, you do have to push this collar onto the front bump stop. The front end has labeled front and there's a little notch on it. This is gonna go towards the front of the jeep when you pop it in. I did put a little grease in there. So let's put it into the factory jounce tube. On the bottom part of this spring retainer, you will get an included bump stop pad. You have to drill this hole out to 3/8". Since we already did have an aftermarket kit, we already have it drilled. However, if you don't, just drill it out to 3/8".

Grab your bump stop with this Allen key bolt in the top. Simply set it on there and then we're gonna put the nut underneath. The included tool is really nice. All you have to do is pop the nut right in and it holds it with that lift. That way, you can start it on the top and you don't have to reach underneath there because it is kind of high and a little bit awkward to get to. The top Allen key is going to use a 7 30 second Allen key bit. I'm just gonna get it started by hand. Then you can get on it with a ratchet and get it tightened down. Just like that, your bump stop pad's completely installed. After you have the upper bump stop installed as well as the lower pad, it's time to install the spring. I like to pit it onto the top first. Pull down the axle a little bit and it'll pop right into place. Let the inside rear corner of the spring perch and the kit actually includes this spring retainer, which is a really nice feature.

All you have to do is mark the hole on the corner. Drill this out to 3/8 and then we're gonna tighten the bolts down to 30 foot pounds. Place the retainer back on over the hole you just drilled. Grab the included hardware. Go right through the top.

Grab your torque wrench and tighten it down to 30 foot pounds. Then you're ready to move onto your shock. Go ahead and grab your front shock. As you can see here, there's an L on here. It's gonna be for the front driver's side. I actually did separate the top mount a little bit. It doesn't take any hardware to do it or any tools. Just split it out a little bit. That way, you can get the pin for this back into that hole on the shock tower. After you have it in, go ahead and grab your top hardware. It's gonna be a bushing then a flat washer. Then put your lock nut back on the top. You can go ahead and tighten down the top mount with a 3/4" socket. Tighten the top shock mount bolt to 20 foot pounds. One of the nice things that TeraFlex includes with this kit, before you put your lower shock mount bolt on, you actually get their brake line and ABS line retention bracket. This is a super nice rubber and metal bracket. It's gonna keep everything tucked away and away from your wheel and tire.

That goes on in the outside of the shock bolt. Sometimes, it helps to use a little mallet to pop that shock bolt in. If it doesn't want to go in too easily, don't force it or you might mess up the threads on the other end. Once you have it in, place the nut on the backside. Before we tighten down this lower shock bolt, I'm actually gonna get this into place with the zip ties. Then when I figure out where this wants to rest, I'll tighten up the lower shock bolt. Slip the ABS line underneath the brake line. There's a nice slot for it. Then you're gonna use the included zip ties. Get it nice and tight. Once you have all the zip ties on, use a small pair of snips. Trim off the excess. Now that the brake line and ABS line retention bracket is properly installed, we're gonna torque down this lower shock mount bolt to 56 foot pounds. It's going to use an 18 millimeter socket and an 18 millimeter box wrench. Just like that, you're good to go.

One of the nicest parts about this kit is that they include these front, lower control arms. Now these are the sport arms, meaning they are a fixed length compared to an adjustable arm. However, this makes it much easier to get it aligned when you're done at the end. We're gonna get them installed. As with any control arm, don't tighten these bolts down until the weight of the vehicle is on it. It's gonna prevent binding and eliminate any issues at the end. So I'm gonna leave these just snugged up in the back. I like to leave it hang. That way, I can adjust it on the front, kind of manipulate it to get it on the axle mount. Place the front mount onto the axle side. Go right through. Put your nut on the backside, same as the rear. You're not gonna get these tightened down until the weight of the vehicle is on. We're actually gonna move back up front and deal with our sway bar link. The first step is to install this lower sway bar link.

This is going to allow them to be completely removable when you're out on the trail, get you some more articulation, going to put a washer over it. Slide it from the inside out. Then put your nyloc lock nut onto the back. Another nice part about these links is they machined it a little. But here, you can get a box wrench onto it. That way, you're not trying to get it on there with a pair of pliers, your channel locks and mar it all up. The actual pin end is going to use an 11/16 box wrench to get around there and then on the backside, you're going to use a 3/4" socket. Now I like to keep the pin horizontal when you put it in. You can either do it horizontal or you can do it vertical. I just think horizontal looks a little bit nicer. Plus, it's a little bit easier to pull off when you're out on the trail. Place your top stud through the outside to the inside. Then use the included lock nut. Get it tightened down.

With that just snug, I'm gonna slide the lower part of the sway bar link on. Go ahead and place the large washer over the stud. Then use your quick disconnect pin. Slide it right over. Now we'll tighten down the upper part. Get this top bolt torqued down to 59 foot pounds. Take the washer and the pin back out. Torque the lower down to 59 foot pounds. Many times when you're out on the trail, you're looking for a place to store the sway bark links. Since this does have a fixed upper, TeraFlex includes a bracket that goes on this front body mount here. It actually allows you to put it up in and place a pin on it, keep it out of the way. Simply removes with an 18 millimeter socket. With our body lift, we actually do have a shank nut in here instead of a standard nut. If you don't have a body lift, which many of you, I'm sure, don't, it's just gonna be a nut in there. It makes it nice and simple. We do have to modify our bracket for our style of nut.

However, if yours is a factory, you won't have to modify it at all. Before you put the bracket back in, place the retention stud with the little red loctite into the threaded hole. Get it nice and tight. Use a 9/16" wrench to get a little bit snugged up and you're gonna place your jam nut onto the back. Once we get our body mount bolt back on, I'll get these both nice and tight. Place the bracket into place. I'm gonna tighten down the pin a little bit more now that it's mounted up. Once you have your sway bar disconnected, all you do is pull it up, pop it onto this pin, place the washer and retention pin that you just pulled off. Now this is nice and tucked out of the way, you can go out on the trail and not worry about where your sway bar is. When you're ready to go back onto the road, all you have to do is put this washer and pin back onto the lower section. After you have this side installed, repeat the same process on the other side.

Then we're gonna move to the center of the jeep and get the included track bar installed. Go ahead and grab your new track bar and place it up. We're gonna put it into the upper mount first using the factory hardware. Get that snugged up on the back. Place the factory bolt into the bottom mount. We do have an aftermarket bolt. But you place you'd place your factory into this section. Use a little rubber mallet. You got the wing nut back there? Reinstall your steering stabilizer. Make sure to tighten up the upper mount of the track bar once it's on the ground. You're obviously gonna have to adjust it. That way, your wheels are tracking right on the front end. The last step before you button up your front end after you have all the suspension tightened down, is to install these exhaust spacers. In our case, we do have aftermarket headers with an aftermarket exhaust system not allowing us to put these in because we already have enough clearance.

If you are to do this, you're going to put one spacer on each side, remove the factory bolts and then tighten these down in between them. It's gonna give you a little bit extra room and allow that drive shaft to clear that front crossover pipe. As you can see behind me, we've moved onto the rear of the JK. We already have the factory suspension removed. We're gonna show you a short clip on how to do that. We got the front all buttoned up. Now we're onto the rear. We're gonna start with a lower shock mount. Remove the sway bar and then this lower track bar mount. We're gonna use an 18 millimeter socket and an 18 millimeter box wrench to get the lower shock mount off.

Once you get the lower bolt out, remove the top two.

Then move onto your sway bar links. It's gonna use an 18 millimeter box wrench and a socket once again.

Now make sure you hold onto this hardware and this sway bar link as you're gonna be reinstalling it. Use a 21 millimeter socket to remove the lower track bar bolt. After the track bar bolt's removed, we're gonna lower the axle down enough so we can get those factory springs out. Now that you have your factory rear suspension removed, we're gonna start by installing the bump stop extension pad down here. Let's get started. Then you can pull the factory springs out. Now make sure you keep this spring retainer pad here at the top. You're gonna be using that with the new springs. When you place your bump stop pad on, make sure that this overlap's gonna go towards the front of the vehicle, as well as this side is facing up. That way, the recessed Allen key bolts can go right in there. Use the provided Allen key hardware to go in through the top. Place a nut on through the bottom. The next part of this kit is to install the track bar relocation bracket.

It's going to slide over the factory track bar mount and then utilize the lower control arm bolt, give it some extra support. It'll slip on nice and easily. You'll get a U bolt on this side. Place the control arm bolt on back on loosely and then for the original hole, you're going to use the provided hardware, as well as this spacer. That way, it doesn't crush the bracket. The track bar will go into one of these two holes up here. Slide the spacer up from the bottom into the factory mount. Get this snugged up. Then we can move onto the U bolt right over here. Place the U bolt in from the back of the axle. Place a washer onto each stud then your mechanical lock nut. Use a 3/4" deep socket to get these tightened up. Torque the U bolts down to 45 foot pounds torque the track bar bolt down to 125 foot pounds. Go ahead and put the factory bolt back into place. Then get it tightened up. Before we move on, we're gonna pull this bump stop out. We're gonna replace it with the TeraFlex bump. Grab a hold of it.

Just pull it down towards you. Go ahead and grab your speed bump cup. This is going to slip over your jounce tube on the frame. As you can see, it's clearly labeled front. That's gonna go toward the front of the vehicle. It'll just pop right over the cup. Then pop your bump stop into the base. We're now ready to put the coil spring in. Go ahead and place the retention pad on the top.

Then set it into place. As you see, we have a little bit of a gap here. We are gonna put some retainers on the top and the bottom of the spring. We use our pull jack to pick the axle back up and get it right into place. We're gonna place the upper spring retention clamp. It's going to go onto the body and come up from the bottom.

Place the lower retention pad on top of this spring and then use the included tool to get the nut on the bottom side. It's kind of tricky. You just gotta feel for it and then get it loosely snugged up. In order to get the shock mounted, the Falcon 3.1 series uses a larger offset mount. You're gonna have to drill out this outside hole. Test fit it a little bit and figure out what works for you. Go ahead put the included spacer in between the lower shock mount. Slide it in through this way. Put the washer on the backside and your mechanical lock nut. We'll get this all tightened down after we have to shock on this side. That way, it doesn't spin on us. Go ahead and use the factory bolts to go up through the top studs. To get the top mounts loosely installed, we're gonna work on the bottom here next. Go ahead and place your new Falcon 3.1 series shock on the bottom here. It's going to go with the logos outwards and there's a little L on the bottom here, same as the front.

Place the included washer and mechanical lock nut on the outside. Just get it snugged up. We're gonna tighten this one down as well as the inside now that we have everything mounted up. Tighten down the lower shock mount bolt to 56 foot pounds. Torque the upper shock mount bolts down to 37 foot pounds. Then we can move onto the sway bar links. Go ahead and place the upper stud of the sway bar link. Make sure it's on the inside of the brake line. It's going to go from the outside of the jeep in. Use the includes hardware for that upper stud. Just get that snugged up. That way, it doesn't fall off.

Put the lower bolts in and then the factory nut onto it. Now we can go back and tighten everything down. The lower part of the sway bar link uses an 18 millimeter socket and an 18 millimeter box wrench to get it tight.

The top bolt's going to use a 3/4" socket. Torque both bolts down to 59 foot pounds. Torque the lower bolts as well down to 59 foot pounds. Once you have your jeep back on the ground supported by its own weight, go ahead and tighten up all your control arm bolts. Go get a professional alignment and your installation is complete.

We just wrapped up the installation of this TeraFlex ST2 suspension kit onto our 2008 Jeep Wrangler. This kit featured their new Falcon 3.1 series shocks, which are a really great shock and this kit includes everything you need. It comes with a lower front control arm, sway bar links, and everything you need to get it back up on your wheel in about six to eight hours. You can do it with basic hand tools and you can find this kit, as well as many other great TeraFlex products right here at CJPonyParts.com.

Vehicle Fitment

This product will fit the following Wrangler years:

Only registered users can ask/answer questions. Please sign in or create an account.
Write Your Own Review
Only registered users can write reviews. Please sign in or create an account.
Complete Your Package
Add to Cart