This kit includes 9 components, each built and powder-coated in-house.
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Fixed Length End Links
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Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Lower Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Upper Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Fixed Length End Links
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Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Lower Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Upper Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Heavy-Duty Tie Rod, Drag Link Steering Kit
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Jeep Wrangler JL / JLU 18+ Crawl Series Front Heavy-Duty Adjustable Track Bar
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Jeep Wrangler JL / JLU 18+ Crawl Series Rear Heavy-Duty Adjustable Track Bar
View Component →The Ultimate All-Inclusive Suspension and Steering Solution
Transform your Jeep Wrangler JL with the Crawl Series Total Suspension Control Kit (CRL-J-JL-K16). This comprehensive system delivers unmatched control, durability, and performance, combining all the essential components needed for a complete suspension overhaul. From superior axle alignment to precise steering geometry and enhanced off-road articulation, this kit is designed to elevate your Jeep’s capabilities on and off the trail. Simply pair it with your choice of springs and shocks to achieve a full suspension revamp or lift kit.
Key Features and Benefits
- Complete suspension overhaul – Includes 8 adjustable control arms, front and rear track bars, and front and rear sway bar end links, ensuring precise axle alignment, optimal suspension geometry, and enhanced handling for lifted Jeeps.
- Heavy-duty aluminum steering kit – The 2.5-ton steering kit, crafted from 2-inch 7075 aluminum with memory properties, absorbs impacts and returns to its original shape, delivering superior strength and reliability in extreme off-road conditions.
- Improved stability and articulation – Johnny Joints at both ends of the control arms, track bars, and end links provide unmatched off-road articulation and smooth, bind-free movement while maintaining on-road stability and comfort.
- Tailored for lifts from 0 to 6 inches – Fully adjustable components accommodate lifts from 0 to 6 inches, allowing for precise alignment correction, axle centering, and optimal caster and pinion angle adjustments. For custom setups over 6 inches, additional solutions are available upon request.
Build the Ultimate Lift Kit
Combine this kit with your preferred springs and shocks to create a custom suspension system that delivers unmatched performance, durability, and off-road capability.
Two-Stage Powder Coating
Each component undergoes a rigorous two-stage powder coating process. A zinc primer base provides exceptional corrosion resistance, while the durable topcoat—available in 10 customizable colors—adds extra protection and a personalized finish to your Jeep.
Made in the USA
Proudly manufactured in Orem, UT, the Crawl Series Total Suspension Control Kit reflects CORE 4X4’s dedication to American craftsmanship. By managing production in-house, we ensure stringent quality standards and support local industries while offering competitive pricing.
Optional Hardware Upgrade
Designed for straightforward installation, the kit uses factory hardware. Optional Grade 8 hardware kits are available separately for Jeeps with rusted or stubborn bolts, ensuring a smooth and hassle-free process.
Vehicle Fitment: Jeep Wrangler JL 18+ – A full suspension and steering upgrade for precise handling, stability, and off-road capability.
CORE Advantage: Provides absolute control over axle positioning, pinion angle, caster adjustments, and steering geometry for unmatched ride quality.
Adjustability: Fully adjustable for 0–6” lifts, allowing precise axle re-centering, optimized suspension geometry, and fine-tuned steering responsiveness.
Construction: Built from heavy-duty DOM tubing with 5/16” walls, featuring 1.75” OD lowers, 1.5” OD uppers, and a 2.5-ton 7075 aluminum steering kit for maximum strength.
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 Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.
Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. Forded Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.
Rear Upper control arm 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.
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.
Rear 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.
Front End Links built with .75” Cold Rolled Steel. Welded Johnny Joints on both fixed ends.
Rear End Links built with .75” Cold Rolled Steel. Welded Johnny Joints on both fixed ends.
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 | Wrangler | 2018 - Present |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Construction & Materials
Front End Links built with .75” Cold Rolled Steel. Welded Johnny Joints on both fixed ends.
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 Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.
Rear End Links built with .75” Cold Rolled Steel. Welded Johnny Joints on both fixed ends.
Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. Forded Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” 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.
Tie Rod and Drag Link made from 2" 7075 Aluminum. Tie Rod and Drag Link use Apex Chassis Forged Rod Ends.
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.
Rear 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.
| Vehicle | Jeep Wrangler JL / JLU (18–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 | Stock Height or Lifted 1" or Lifted 2" or Lifted 3" or Lifted 4" or Lifted 5" or Lifted 6" or Lifted 7" or Lifted 8" or Custom length or 1/2 sizes (put desired length in the Order Notes) |
| 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) |
| 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.
Reviews of Core 4x4
Suggested Products
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Fixed Length End Links
$ 335.95
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Lower Adjustable Control Arms
$ 503.95
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Upper Adjustable Control Arms
$ 314.95
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Fixed Length End Links
$ 335.95
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Lower Adjustable Control Arms
$ 482.95
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Upper Adjustable Control Arms
$ 461.95
Jeep Wrangler JL / JLU 18+ 2pc Heavy-Duty Tie Rod, Drag Link Steering Kit
$ 1,200.00
Jeep Wrangler JL / JLU 18+ Crawl Series Front Heavy-Duty Adjustable Track Bar
$ 330.70
Jeep Wrangler JL / JLU 18+ Crawl Series Rear Heavy-Duty Adjustable Track Bar
$ 341.20
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 | Stock Height, Lifted 1", Lifted 2", Lifted 3", Lifted 4", Lifted 5", Lifted 6", Lifted 7", Lifted 8", Custom length or 1/2 sizes (put desired length in the Order Notes) |
| 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) |
| Stabilizer Clamp | Standard Clamp, Hydraulic Assist Clamp |
| Vehicle | Jeep Wrangler JL / JLU (18–Present) |
| Brand | CORE 4X4 |
| Series | Crawl Series |
| Note to Core4x4: | - |
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