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🧾 Overview
The TeraFlex JL 4-Door 3.5 Inch Sport ST3 Suspension System is an all-inclusive Street & Trail lift designed to deliver excellent ride quality, predictable handling, and confident off-road capability for the Jeep Wrangler Unlimited JL. Built on the proven Sport ST platform, this system focuses on restoring proper suspension geometry while maintaining a maintenance-free, bolt-on design.
Front Control Arm Sport Frame Brackets correct caster on taller lifts, improving steering feel and reducing brake nose dive. Upgraded track bar brackets recenter the axles and optimize roll center for improved stability, while progressive bump stops and quick disconnect sway bar links enhance trail articulation. The result is a lift that performs smoothly on pavement and flexes confidently off-road.
Note: Shocks are not included. Falcon Performance Shocks are recommended for optimal ride quality and control.
✔ 3.5" Sport ST3 street & trail suspension system
✔ Geometry-correcting front control arm frame brackets
✔ Improved steering response and reduced brake nose dive
✔ Balanced ride quality with enhanced off-road flex
✔ Maintenance-free, bolt-on design
🛠 Installation
- Direct bolt-on installation using factory mounting points. No cutting or welding required. Designed for install-and-drive convenience. Professional installation and alignment are recommended for best results.
📌 Specs
- Key Features & Benefits
- Sport ST lift coil springs tuned for ride quality and durability
- Front Control Arm Sport Frame Brackets restore caster and pinion geometry
- Front and rear track bar brackets recenter axles and improve roll center
- Progressive bump stops reduce harsh bottom-out and protect components
- Front sway bar quick disconnects improve off-road articulation
- Rear sway bar links maintain proper sway bar geometry
- Reduced noise, vibration, and harshness for a refined daily ride
📘 Specifications
- Brand: TeraFlex
- System Type: Sport ST3 Suspension System
- Lift Height: 3.5 inches
- Position: Front & Rear
- Vehicle Platform: Jeep Wrangler Unlimited JL
- Body Style: 4-Door
- Shock Compatibility: Not included (Falcon Performance Shocks recommended)
- Installation Type: Bolt-on
📦 What’s Included (What’s in the Box)
- Front Components
- 3.5" front lift coil springs (PN 1863000)
- Sport Frame Bracket Kit – front control arm (PN 1938125)
- Front lower track bar bracket – 2.5–3.5" lift (PN 1953250)
- Progressive front bump stops (PN 1959200)
- 2" front bump stop strike pad extension kit (PN 1959500)
- 0.5" front bump stop strike pad shim kit (PN 1959300)
- Front sway bar quick disconnect kit (PN 1764000)
- Brake line anchor kit – front (PN 1101255)
- Rear Components
- 3.5" rear lift coil springs (PN 1863100)
- Rear lower track bar bracket – 2.5–4.5" lift (PN 1953600)
- Progressive rear bump stops (PN 1959200)
- 2" rear bump stop strike pad extension kit (PN 1959500)
- 0.5" rear bump stop strike pad shim kit (PN 1959300)
- Rear sway bar link kit (PN 1764300)
- Additional
- All required mounting hardware
🛡 Warranty
- Manufacturer-backed warranty provided by TeraFlex.
⚠️ Fitment Notes
- Jeep Wrangler Unlimited JL (4-Door)
⚠️ Fitment Notes
- Shocks are not included. Professional installation and post-install alignment are recommended. Tire fitment depends on fender type, wheel offset, and bump stop configuration.