Suspension and Components› Suspension Kits

Rock Krawler Suspension

21C WRANGLER JLU 4DOOR [4XE]3.5IN ULTIMATE ADVENTURE SYSTEM B51

$3,039.02

SKU: R01V JL35UA-4XEB51

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Rock Krawler 3.5 Ultimate Adventure Mid-Arm 4XE System is specifically designed for Wrangler owners who want a complete system, bolt-in installation, and excellent articulation. It includes 4 non-adjustable lower control arms and 4 fully adjustable upper arms with 100 percent service-free Adventure Series joints, offering 70 degrees of misalignment. The system uses Triple-Rate coils for comfortable on-road ride and off-road articulation, with correction pads to reduce spring bow. Front and rear track bar geometry corrections ensure proper axle centering and on-road handling.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRock Krawler Suspension
Part NumberR01V JL35UA-4XEB51

Videos

The Ultimate Jeep Wrangler Lift Kit Comparison – On & Off-Road Test

The Ultimate Jeep Wrangler Lift Kit Comparison – On & Off-Road Test
Rockzilla Suspension System - JLU Wrangler

Rockzilla Suspension System - JLU Wrangler

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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