JKS 3.5" Lift Kit · J-Max Wrangler JK
Questions about fitment? Live chat or call 866-235-4715
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- Free shippingMost orders $500+
- 30-day returnsSee policy
- Warranty supportWe work with the maker
Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- Tire: 35x12.50
- Wheel: 16x8, 17x9, 20x9
- Backspacing: 4.5"
- Other tire/wheel sizes can be used, however may require additional modifications.
TRU specialist notes
From the Trucks R Us fitment and install team, beyond the manufacturer's information.
- Plan for a professional wheel alignment after installing any lift or leveling kit.
- Going to bigger tires as well? Speedometer recalibration may be needed, and some tire and wheel combinations need trimming. Check the recommended wheels and tires, or ask us before you order.
Specifications
| Brand | JKS Manufacturing |
|---|---|
| Part number | JSPEC153KF |
| Shocks Included | FOX 2.5 Factory Race Series |
| Installation Difficulty | Very Difficult |
| Installation Time | 10 HR |
| J-rating | J-Max |
California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov
What's in the box
| Qty | Part | Description |
|---|---|---|
| 1 | FOX88406177 | Kit: JKS 07-18 Jeep Wrangler JK Rear Coilover, 2.5 Series, R/R 3.5" Lift, DSC |
| 1 | FOX88406178 | Kit: JKS 07-18 Jeep Wrangler JK Front Coilover, 2.5 Series, R/R 3.5" Lift, DSC |
| 1 | JKS1610 | JK Front Adjustable LCA |
| 1 | JKS1615 | JK Front Adjustable UCA |
| 1 | JKS1660 | JK Rear Adjustable LCA |
| 1 | JKS1665 | JK Rear Adjustable UCA |
| 1 | JKS2510 | JK Front Coil-over Mounting Kit |
| 1 | JKS2519 | 07-18 Jeep JK Rear Coilover Conversion Brackets |
| 1 | JSPEC2355 | 07-18 Jeep Wrangler JK J-Krawl Max Main Box Kit |
Features
- Front/Rear FOX 2.5 Remote Reservoir DSC Coilovers w/ Bolt-On Brackets for improved performance, strength and tunability
- Front Adjustable Track Bar and Rear Track Bar Bracket to correct axle positioning under vehicle
- Front Sway Bar Quicker Disconnects and Brake Line Brackets to allow for increased offroad articulation
- Front/Rear J-Flex Upper and Lower Control Arms for improved strength and caster correction
- Front/Rear Bump Stop Extensions to properly limit suspension up travel
Fitment
| Years | Vehicle |
|---|---|
| 2018 | Jeep Wrangler JK |
| 2007–2017 | Jeep Wrangler |
Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.
Overview
Build the ultimate Jeep Wrangler JK and be ready for any terrain with the JKS J-Max 3.5" suspension system. The J-Max kit includes front and rear 10" FOX 2.5" diameter Factory Race Series coil-over shocks with DSC adjustable remote reservoirs, front adjustable track bar, rear track bar bracket, J-Flex upper and lower control arms, and bump stop extensions. J-Max pulls out all of the stops to offer a truly performance driven suspension package. At each corner the custom tuned 10" travel FOX 2.5" diameter Factory Race Series coil-overs with DSC adjustment provide the ultimate in tuning options. Custom dual rate springs specifically designed for the JK dial in the ride height with the DSC adjusters providing both high and low speed compression adjustments. J-Flex adjustable control arms improve strength, off-road performance and adjustability. J-Max suspension systems feature high-strength bolt-on coil-over mounting brackets, an adjustable front track bar, sway bar quicker disconnects. Take your Jeep's off-road performance and strength to the max with J-Max. An aftermarket front driveshaft is strongly recommended due to additional travel capable.
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
Do I need an alignment after installing?
Yes. Any lift or leveling kit changes suspension geometry, so get a professional alignment after installation.
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About JKS Manufacturing
Since 1989, JKS Manufacturing has developed some of the world?s most widely used and respected products for Jeep vehicles. It all started when we pioneered the original Quick Disconnect brand of quick-release sway bar disconnects. Since then our product range... Shop all JKS Manufacturing