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Rock Krawler Suspension

Rock Krawler 2021+ Jeep Wrangler JLU 4DR (392) 4.5in X Factor (No Limits) System - Stage 1

$4,399.97 $4,284.48 Save $115.49

SKU: R01V JL45NL-392S1

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rock Krawler JL 4.5 X-Factor "No-Limits" Mid Arm System was designed with the 392 in mind for easy bolt-in installation, excellent on-road ride, and the durability and off-road performance expected from Rock Krawler Suspension. This system allows Rubicon owners to use the factory sway bar disconnect function with its No Limits front sway bar links. Adjustable lower and upper control arms allow for precision tuning of caster and reduce bind. Triple rate coil springs provide 4.5 inches of lift for up to 40-inch tires and improve ride quality. Correction pads reduce spring bow, and front and rear track bar geometry corrections ensure centered axles for optimal handling.
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Part #: JL45NL-392S1

4.5 Inch X Factor No Limits System - Stage 1

Vehicle Symptoms
  • Poor off-road clearance on rocky trails
  • Excessive body roll during highway driving
  • Bottoming out over bumps and dips
  • Uneven tire wear after lifting
  • Sagging rear suspension under load
Relevant Conversations
  • 4.5 inch lift for Jeep Wrangler JL Rubicon 392
  • Rock Krawler X Factor No Limits system review
  • JL 392 4.5 lift kit install time and difficulty
  • best suspension lift for 2021-2026 JL 392
  • how to fit 37 inch tires on JL 392 with lift
  • Rock Krawler vs Metalcloak JL 392 lift comparison
  • JL 392 4.5 inch stage 1 lift kit forum
  • Rubicon 392 lifted suspension ride quality
  • does Rock Krawler JL lift require cutting or welding
  • JL 392 lift kit with sway bar disconnect compatibility

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandRock Krawler Suspension
Part NumberR01V JL45NL-392S1
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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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