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12pc Kit
SKU: CRL-J-JT-K12 ★★★★★ (132 reviews)
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$ 2,633.69 2633.69 USD $ 3,202.45

$ 3,202.45

(Save 18%)

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Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
Free mounting hardware included — a $100 value
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/1764/image_1920?unique=982bc5a

12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit

SKU: CRL-J-JT-K12
Pick your vehicle to confirm fit
Google 5.0 ★★★★★ (132 reviews)

$ 2,633.69 2633.69 USD $ 3,202.45

$ 3,202.45

(Save 18%)

COLOR 11 colors
Black Blue Charcoal Green LightGreen Orange Purple Red White Yellow Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Compare all tiers →

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Drag Link Orientation
    Select flipped drag link only if your steering has already been converted to over-the-knuckle.
  • Rear Track Bar Clearance Bend For Spare Tire
    Choose clearance bend if your spare tire interferes with a straight rear track bar.
  • Stabilizer Clamp
    Match your steering stabilizer mounting style. Standard clamp, hydraulic assist, or tie rod clamp.
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Free mounting hardware included — a $100 value

Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Transform Your Gladiator’s Suspension and Steering Performance

Take your Jeep Gladiator JT to the next level with the Crawl Series Complete Kit With Steering. Designed to deliver unmatched flexibility, durability, and control, this all-inclusive upgrade provides a seamless combination of enhanced suspension and steering for both on-road refinement and off-road dominance. Whether tackling rugged trails or cruising highways, this kit ensures unparalleled performance and adaptability.

Key Features and Benefits

  • Complete suspension and steering solution – Includes eight adjustable control arms, front and rear track bars, and a 2.5-ton aluminum steering kit for optimized suspension geometry and precise steering alignment.
  • Unparalleled flexibility and articulation – Johnny Joints at both ends of every control arm and track bar allow for maximum articulation, ensuring smooth, bind-free movement across tough trails.
  • Optimized handling and steering control – Addresses common issues like wandering, death wobble, and misalignment, while the 2.5-ton aluminum steering system enhances responsiveness and durability.
  • Built for tough terrain – Heavy-duty 1.75” and 1.5” DOM tubing construction with a 2.5-ton steering kit made from 7075 aluminum, designed to flex and return to its original shape after hard impacts.

Enhanced Suspension and Steering for Maximum Control

This comprehensive kit transforms your Gladiator JT by correcting axle alignment, improving steering precision, and enhancing overall drivability. High-strength components and precise adjustability reduce suspension stress, improve handling, and provide a smooth, controlled driving experience.

Durable Two-Stage Powder Coating

Each component undergoes a zinc primer base coat for corrosion resistance, followed by a top coat available in 10 colors for a personalized look.

Optional Hardware Upgrade

Designed for straightforward installation using factory hardware, with optional Grade 8 hardware kits available separately for rusted or stubborn bolts.


  • Vehicle Fitment: Jeep Gladiator JT 20+ – This all-inclusive suspension and steering kit delivers total control, enhancing articulation, stability, and handling for both extreme off-road conditions and refined on-road drivability.

  • CORE Advantage: This kit completely transforms your Gladiator’s suspension and steering, delivering unparalleled articulation, precise axle positioning, and incredible handling for the ultimate driving experience on and off the trail.

  • Adjustability: Fully adjustable to accommodate lifts from 0 to 6 inches, ensuring optimal axle centering, proper caster and pinion angle correction, and improved suspension geometry for a smoother, more controlled ride across all terrains.

  • Construction: Built with 1.75” OD DOM lower control arms, 1.5” OD DOM upper control arms, and a 2.5-ton 7075 aluminum steering kit that flexes under impact and returns to shape, this system delivers unmatched durability and extreme suspension performance.

  • Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.

  • Warranty and Origin: Proudly manufactured in the United States, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

Built With

Front Lower Control Arm Built With 1.75” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Front Upper Control Arm Built With 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joint on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Rear Upper Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Rear Lower Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Front Track Bar Built With 1.5” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1” x 14 TPI - 2.32” long threads.

Rear Track Bar Built With 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14” TPI - 2.32” long threads.

Tie Rod and Drag Link Made From 2" 7075 Aluminum. Tie Rod and Drag Link use Apex Chassis Forged Rod Ends.

Make Model Submodel Years
Jeep Gladiator 2020 - Present

Construction & Materials

Jeep Gladiator JT 20+ 2pc Crawl Series Front Lower Adjustable Control Arms

Front Lower control arm built with 1.75” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Jeep Gladiator JT 20+ 2pc Crawl Series Front Upper Adjustable Control Arms

Front Upper control arm built with 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Jeep Gladiator JT 20+ 2pc Crawl Series Rear Lower Adjustable Control Arms

Rear Lower control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Jeep Gladiator JT 20+ 2pc Crawl Series Rear Upper Adjustable Control Arms

Rear Upper control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Jeep Gladiator JT 20+ 2pc Heavy-Duty Tie Rod, Drag Link Steering Kit

Tie Rod and Drag Link made from 2" 7075 Aluminum. Tie Rod and Drag Link use Apex Chassis Forged Rod Ends.

Jeep Gladiator JT 20+ Crawl Series Front Heavy-Duty Adjustable Track Bar

Front Track Bar built with 1.5” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joints on the adjustable end with 1” x 14 TPI - 2.32” long threads.

Jeep Gladiator JT 20+ Crawl Series Rear Heavy-Duty Adjustable Track Bar

Rear Track Bar built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14” TPI - 2.32” long threads.

Vehicle Jeep Gladiator JT (20–Present)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Series Crawl Series
Lift Size 0" — 6" or 6"+
Hardware No Hardware or Complete Kit
Drag Link Orientation Factory Mounting (under the knuckle) or Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle)
Rear Track Bar Clearance Bend For Spare Tire Straight Bar or Clearance Bend
Stabilizer Clamp Standard Clamp or Hydraulic Assist Clamp
Placement on Vehicle Front Upper, Front Lower, Rear Upper, Rear Lower, Front, Rear
Mounting Style Bolt-On

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

Google

Reviews of Core 4x4

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
PB
Peter Busack May 27, 2025
★ ★ ★ ★ ★ Google
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
JA
Jonathan Aguilera Jan 22, 2026
★ ★ ★ ★ ★ Google
Great experience with Core 4x4! I purchased some suspension parts for my dad's 98 Jeep TJ. The products they make are super durable and look even better in person. Attention to detail and overall superior quality. The staff at Core 4x4 is super helpful also, Korby has been great. Updating me on the status of my order and sending me tracking numbers as well. Thank you all at Core 4x4, keep up the amazing work!
MB
Melody Baker Jan 22, 2026
★ ★ ★ ★ ★ Google
I ordered a part for my 03 Jeep TJ and all I can say is wow! Korby at Core 4x4 is a total rockstar!! There was a glitch with my payment and within minutes, Korby reached out to me to get it fixed, then sent my receipt with the tracking number. I lost the number and reached out to him during the Holidays and got a rapid response with the number again. I can’t say enough about the customer service and the quality of parts. Thank you!!
DT
Dean Tk421 Feb 21, 2026
★ ★ ★ ★ ★ Google
I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
D
DSI Jul 26, 2025
★ ★ ★ ★ ★ Google
Great products with excellent customer service after the sale
JM
Jason Mitchell Dec 8, 2025
★ ★ ★ ★ ★ Google
Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
RH
Roger Hooks Jun 26, 2025
★ ★ ★ ★ ★ Google
2018 Ram 2500 Rear Control Arms and Rear track Bar been running for about a year, Great Solid Products and great one on one customer service, same day response with issue resolved! Thanks Korby!
B
Ben Mar 24, 2021
★ ★ ★ ★ ★ Google
2001 Wrangler TJ- i have purchased all front/rear upper/lower control arms. Front track bar and rear track bar. Quality is excellent and extremely durable you can tell its built to last. Bent a bolt on the front track bar and called and spoke with Spence. He immediately sent me out new hardware plus some! Product is amazing but what really separates companies apart is their service and these guys are second to none. Thank you all!
CM
Craig MacIver May 27, 2025
★ ★ ★ ★ ★ Google
Got the CAMP version of adjustable control arms and track bars for our 03 TJ with a 3” lift and 33x10.5 KO 2’s. Super beefy bars, great fit and adjustability. Friendly advice and support from Korby at CORE 4X4. Good follow up as well. The ride quality is great as well as the handling. I think it all looks pretty good as well.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
JS
Jon Stempien May 27, 2025
★ ★ ★ ★ ★ Google
Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel

Specifications

Color Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Lift Size 0" — 6", 6"+
Hardware No Hardware, Complete Kit
Drag Link Orientation Factory Mounting (under the knuckle), Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle)
Rear Track Bar Clearance Bend For Spare Tire Straight Bar, Clearance Bend
Stabilizer Clamp Standard Clamp, Hydraulic Assist Clamp
Vehicle Jeep Gladiator JT (20–Present)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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ARMOR & BODY Choose vehicle for fit
Frame Brackets Coming Soon Mounting + relocation brackets › Panhard Mount Coming Soon Track bar relocation mount › Axle Truss Weld-on axle reinforcement 2 › Rear Bumpers Heavy-duty rear bumpers 1 › Frame Stiffener Coming Soon Frame reinforcement plates for big lifts › Skid Plates Coming Soon Engine · Oil pan · Muffler · Gas tank › Exterior Accessories Bumper guards · Cargo racks · Light mounts 8 › Armor Axle trusses · Diff covers · Crossmembers 22 ›
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Drivetrain Coming Soon Axles · Gearing · Driveshafts ›