JL Wrangler Suspension Systems by Rusty’s Off-Road
The JL Wrangler introduced big improvements in suspension geometry and comfort — but there's still room to make it your own. Whether you’re upgrading for larger tires, more flex on the trail, or heavy overland loads, Rusty’s offers American-made lift systems designed for how you actually use your Jeep.
We offer solutions for all JL models, including the 2-door and 4-door, Diesel, 392, and 4xe. From simple budget boosts to full coil spring replacements with adjustable control arms and track bars, we’ve got your build covered.
Suspension Tiers Explained: Basic, Performance, and Advanced
Rusty’s JL coil spring systems are offered in 2" and 3" lift heights with Basic and Performance configurations — and Advanced systems starting at 3.5" and 3.75". Each level is designed to meet different needs:
Basic Kits (2" and 3") – Simplicity and Stability
Perfect for daily drivers and weekend trail rigs, Basic Kits include:
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Rusty’s progressive-rate coil springs
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Bump stop extensions
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Extended sway bar links
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Factory control arms are retained
These kits are an easy and effective way to improve stance, ride quality, and tire clearance without changing geometry.
Performance Kits (2" and 3") – More Control, Better Handling
Performance Kits build on the Basic setup with:
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Adjustable front lower control arms
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Extended brake line brackets
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Optional shock upgrades
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Slightly more articulation and stability off-road
They’re ideal for Jeeps that see regular off-road use but still want solid street manners.
Advanced Kits (3.5" and 3.75") – Complete Suspension Overhaul
Rusty’s Advanced Kits are our most capable and complete systems. These are engineered from the ground up and include:
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Corner-specific dual-rate coil springs
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Adjustable upper and lower control arms (front and rear) with forged flex joints
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Adjustable front and rear track bars
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Extended sway bar links, bump stops, isolators
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Tuned shocks and optional steering stabilizers
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Compatible with Rusty’s Heavy-Duty Aluminum Steering System
Advanced Kits are the right choice for serious wheelers, overlanders with loaded-down rigs, or anyone looking to run 37–40" tires with full articulation and confidence.
392 and 4xe Models: Purpose-Built Kits
Rusty’s offers dedicated suspension systems designed specifically for the unique weight and geometry of 392 and 4xe hybrid JL Wranglers. These kits feature custom spring rates and properly matched components — not generic parts — to ensure correct ride height, balance, and performance for these specialty models.
Spacer and Budget Boost Options
Not ready for a full coil spring system? Our spacer lift and budget boost kits offer a cost-effective way to fit larger tires or level your JL. These kits retain the factory springs and shocks and include:
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3/4" front spacers
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Leveling kits
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2" full budget boosts with isolators and bump stops
Perfect for newer builds or light-duty off-road use, Rusty’s spacer kits provide a clean and easy lift without changing suspension geometry.
Trusted by Jeep Owners, Built in the USA
Rusty’s has been building Jeep suspensions for over 46 years, and we didn’t rush our JL systems to market. Each kit was CAD-designed, tested in-house, and refined on real trails to ensure performance, durability, and peace of mind.
When you run Rusty’s, you’re not just lifting your Jeep — you’re getting suspension you can trust wherever the road (or trail) takes you.
