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RockJock Coil Spring Set, JT Gladiator (EcoDiesel), 3.5 in. Lift, Front/Rear, Set of 4
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772.00 772.0 USD 772.00

772.00

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Fitment guarantee Ships from Orem, UT 4–8 hr install
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RockJock Coil Spring Set, JT Gladiator (EcoDiesel), 3.5 in. Lift, Front/Rear, Set of 4

RockJock Coil Spring Set, JT Gladiator (EcoDiesel), 3.5 in. Lift, Front/Rear, Set of 4
SKU: RJ-154002-101
Pick your vehicle to confirm fit

772.00 772.0 USD 772.00

772.00

Not Available For Sale

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Lifetime warranty 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

This set of 4 RockJock coil springs will provide 3 1/2 inches of lift in Jeep JT Gladiators that feature the EcoDiesel engine. These springs directly replaces the factory coil springs and are designed to work with RockJock Johnny Joint suspension systems or other manufacturer's 3 to 5-inch lift kits. This spring set, besides lifting the vehicle 3.5 in., also levels the vehicle and provides an improved ride. Extensive research was done by RockJock to develop the perfect combination of rates and quality of the coil springs. The results: they provide the best in comfortable ride and excellent performance off-road. Finish is gloss black powder coat. Springs are intended for gas, V-6 engine vehicles. If you need help choosing the correct springs for your Jeep - just call the RockJock sales staff!

Make Model Submodel Years
Jeep Gladiator 2020 - Present

Brand RockJock
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Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
JW
Jonathan Word Aug 25, 2025
Google
Beefy parts made and painted well, very fair pricing for what you get, and fantastic customer service to boot. Easily my favorite place to get suspension parts.
JC
John Cutler Oct 24, 2025
Google
In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
JO
Jaime Overmyer Nov 23, 2025
Google
Korby was extremely helpful in helping me find the right part for my truck. He was kind, knowledgeable, and patient while I asked a million questions. He also went out of his way to find the right shipping option for me since it’s tricky where I live. I’m looking forward to getting the parts so I can fix my truck and go adventuring again soon!
A
Adam Oct 24, 2025
Google
I couldn't have been more excited for the initial unboxing of these new Core 4x4 UCA's! They appear to be so well built and just a true quality product. Installation was a breeze and the initial testing with the forklift appears to have given me some additional flex with less binding on the rest of the components now that the geometry is back properly aligned. Time will tell how they hold up on my near future off-road adventures but I don't have any doubt that they are up to the task!
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MH
Matthew Handy Sep 24, 2025
Google
Ran into an issue with a part that I ordered. Got ahold of them explained to them the issue I was having and they jumped in and got the issue fixed. Hands down the best customer service I have ever dealt with. The parts are hands down amazing. Highly recommend.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
M
Matt Mar 23, 2024
Google
The best products on the market. 95% of my xj is core 4x4 products
JT
jacob trice Apr 27, 2025
Google
Core 4x4 has outstanding products at a fair price and unmatched customer service. When you call Korby, it's like talking with a friend. Very cool and helpul! I ordered some custom control arms, but from the wrong product line and they were super cool about returning them and upgrading to a better "Crawl" series. Only charged the difference between the two products. They paid all the return shipping and sent the uprgaded arms super quick. It was only a couple days. Awesome!! I couldn't be happier with the transaction👍🏼 Also, these control arms are stout and take a beating. I run heck out my Jeep in the rocks and desert. No problems whatsoever. Thanks Core 4x4, ya'll are welcome at my campfire anytime! Jake T. Pleasant Hill, Or.
KK
Kevin Kinard Oct 24, 2025
Google
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
TD
Tim Davis Sep 24, 2025
Google
Customer service is amazing, responds fast and know what they are talking about. Their product looks top of the line.

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Brand RockJock
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