ReadyLIFT 3.5" Terrain Flex 4-Arm Kit With Falcon 2.1 Monotube Shocks for 2018-2026 Jeep Wrangler

$2,249.95
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See it on a truck

Falcon 2.1 monotube shocks

Falcon shows its JL Series 2.1 monotube shocks, built for daily driven Wranglers.

Falcon 2.1 monotube shocks

Falcon shows its JL Series 2.1 monotube shocks, built for daily driven Wranglers.
ReadyLIFT Terrain Flex 4-Arm Kit installed on a Jeep Wrangler JL: A black lifted Jeep Wrangler with ReadyLIFT graphics flexing over slickrock with red cliffs at sunset

Ready for daily duty

A lifted stance with bigger tires still has to commute, tow and haul. SST kits keep a small rear rake so the vehicle sits right with weight in the bed or on the hitch.

Frequently Asked Questions

Straight answers on specs, fit and support

How is an SST kit different from a leveling kit?

A leveling kit raises only the front to cancel the factory rake. An SST kit lifts the front and the rear, so the whole vehicle gains height.

What is the largest tire it clears?

The tire size ReadyLIFT lists for this exact vehicle is in the specifications on this page. Tire dimensions vary by brand, so test fit your wheel and tire combination before mounting.

Will I need an alignment after installing it?

Yes, plan on one. ReadyLIFT notes the vehicle may need an alignment after installation, and headlamp aim should be checked at the same visit.

Does it affect driver-assistance cameras and radar?

Changing ride height can shift camera, radar and sonar aim. ReadyLIFT says to check and recalibrate these systems after installation, and some vehicles need dealer tools to do it.

Can I install it myself?

ReadyLIFT recommends a certified mechanic and says to read the instructions fully before starting. The install sheet and ReadyLIFT's estimated install time for this exact kit are on this page.

Is an SST kit covered for off-road use?

ReadyLIFT's warranty excludes damage from off-road abuse on its lift kits. Its Jeep SST and Terrain Flex kits are the exception and remain covered in recreational off-road use.

What our customers say

5 · 3 reviews

Roho78 Verified
08/21/2026

AWESOME KIT!!

Installed the 69-6837 kit on my 2022 JL. Easy install, ride quality is great. Added the Falcon adjustable stabilizer also. Running 37x13.50-22 Nitto Trail Grapplers and 22x12 Fuel Rebar wheels.

Kramflex Verified
08/20/2026

Readylift 3.5inch Rubicon

easy install as long as you have all the tools needed for the job. so far it has been great offroad and on road. really digging the lift. Rubicon JLU on 37’s

BP76 Verified
11/21/2024

Great lift

Great lift. Had it installed by a local company and had it off road the next day and put it to the test. Handled just as good as stock on the roads and off road is where I was really impressed.