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TeraFlex 4.5" ST4 Lift Kit w/ Falcon Shock Options; Gladiator JT

$2,684.99 Free Shipping
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TeraFlex's New ST4 Suspension System!

  • 4.5” Lift Coil Springs
  • Rear Forged ST Sway Bar
  • Front Control Arm Brackets
  • True Street & Trail Performance
  • Optional Falcon Shock Configurations
  • Limited Lifetime Warranty

Fits: 2020+ Gladiator JT

The all-inclusive TeraFlex Sport ST Suspension System deliver true street & trail (ST) performance and capability in a dependable and maintenance-free package! Developed for the Jeeper looking for a stable commute and comfortable trail performance, the 4.5” Sport ST4 Suspension System features Front Lower Control Arm Brackets and a Rear Forged ST Sway Bar. The Control Arm Brackets optimize steering geometry for improved highway handling by improving front caster and pinion angle. The ST Sway Bar helps greatly reduce rear body roll which results in better overall handling of the vehicle. An Extended-Travel Shock Accessory Kit safely provides 16” of rear suspension travel. The Sport ST4 is a simple “install and drive” bolt-on installation with no cutting, welding, or alignment required. These maintenance-free suspension systems provide superior on-road ride quality and comfort with maximum off-road flex. All TeraFlex suspension systems provide reduced noise, vibration, and harshness (NVH).


Street & Trail Suspension Lift:

  • Delivers true Street & Trail (ST) performance
  • Dependable performance w/ zero worries
  • Positive, responsive handling w/ reduced NVH
  • Front and Rear Progressive Bump Stops protect occupants and the vehicle from hard suspension bottoming
  • Features Front Sway Bar Quick Disconnects
  • Full range of movement for off-road flex and articulation
  • Install and drive, simple bolt-on installation – no welding required
  • No alignment required
  • TeraFlex Limited Lifetime Warranty against defects

Falcon SP2 3.3 Fast Adjust Piggyback Shocks:

  • The Falcon SP2 3.3 Fast Adjust Piggyback Shocks utilize a three-position knob to change the ride and dampening settings from soft to medium to firm while incorporating an 8-point Micro-Adjust Dial to precisely tune your handle in the medium setting for complete 10-point adjustment control easily accessed and adjusted at the top of the shock.

Falcon SP2 3.1 Piggyback Shocks:

  • The Falcon SP2 3.1 Piggyback Shocks deliver improved ride quality, comfort, and stability, while the increased compression of the piggyback reservoir provides agile off-road handling while being optimized for on-road comfort. Consider the Falcon 3.1 if you want all-out performance without the 10-point adjustability of the 3.3 series.

What sets all series of Falcon Shocks apart from the rest?

  • Corner specific shock absorbers, tune for the Wrangler JL
  • Race-inspired performance for increased vehicle stability
  • Improved dynamic roll control and low-speed damping
  • Dramatic improvement in on-road comfort and off-road performance
  • Optimized fitment for unobstructed suspension travel and articulation
  • 2.3" shock body provides optimal performance
  • 6061-T6 aluminum alloy shock body resists Impact to protect internal components
  • Smooth honed internal shock body surface for long-term performance
  • 3/4" induction hardened chrome plated shaft resists rock damage, corrosion, and shaft buckling
  • Large shaft diameter provides a wide range of adjustment on adjustable shocks
  • Hard anodized 6061-T6 aluminum alloy billet piston
  • 1-piece Teflon bronze piston wear band w/ O-ring
  • VOD (Volume Optimized Damping) features a digressive linear piston for quicker ramp-up and increased damping volume
  • VOD reduces shock bottoming at full compression or over uneven terrain
  • OGS (Oil/Gas Separator) prevents cavitation
  • High-viscosity, full synthetic Red Line shock oil for consistent performance across all temperatures
  • Synthetic formula also contains special anti-wear and lubricity agents
  • 1,000-hour salt spray corrosion resistance test on all hardware
  • Designed, engineered, and assembled in-house from domestic and globally sourced components
  • Serviceable and rebuildable
  • Patented design with 3-year warranty

What does the SP2 mean in the Falcon Shock series?

  • Choose between Soft and Performance modes during installation; Tunes both compression and rebound
  • Soft mode allows a partial bypass of the main piston for a softer ride
  • During aggressive driving, soft mode retains performance tuning for optimal handling
  • Soft mode recommended for rough terrain/surfaces and cold weather
  • Performance mode recommended for max on- and off-road handling, stability, and control
  • SP2 setting selected by rotating the shock shaft 360 degrees while being installed

Lift Kit Includes:

  • 4.5” Lift Coil Springs
  • Sport Frame Bracket Kit – Front Control Arm
  • Extended-Travel Axle Bracket Kit – Rear Upper Control Arms
  • Front Track Bar Axle Bracket
  • Rear Track Bar Axle Bracket
  • Progressive Bump Stop Kit – Front & Rear
  • 2” Bump Stop Strike Pad Extensions – Front Lower x 2
  • 0.5” Bump Stop Strike Pad Shims – Front Lower x 4
  • 1.5” Bump Stop Extension Kit – Rear Upper
  • 0.5” Bump Stop Shim Kit – Rear Upper
  • 0.5” Bump Stop Strike Pad Shim Kit – Rear Lower
  • Front Sway Bar Quick Disconnect Kit
  • Forged ST Sway Bar Kit – Rear
  • 1.5” Rear Driveline Center Support Mount Lowering Spacer Kit
  • Extended-Travel Shock Accessory Kit
  • Coil Spring Retainer Kit – Rear Upper & Rear Lower
  • Front Brake Line Anchor Kit
  • Brake Line Anchor Kit – Rear
  • All necessary hardware

Max Tire Diameter:

  • Sport/Overland Fenders: 35” (w/ 3” front & 2.5” rear bump stops)
  • Sport/Overland Fenders: 37” (w/ 4” front & 3.5” rear bump stops)
  • Rubicon Fenders: 37” (w/ 2” front & 2.5” rear bump stops)
  • Rubicon Fenders: 39” (w/ 4” front & 3” rear bump stops)

Product Notes:

  • Requires aftermarket wheels w/ 4.75” backspacing or less – or Offset Wheel Adapters for stock wheels – NOT INCLUDED.
  • Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35” or larger tires.
  • Sport/Overland fenders require 3” Front and 2.5” Rear (INCLUDED) or 4” Front and 3.5” Rear (NOT INCLUDED) Bump Stop/Strike Pad Extensions/Shims to fit 35” or 37” tires, respectively.
  • Rubicon fenders require 2” Front and 2.5” Rear (INCLUDED) or 4” Front and 3” Rear (NOT INCLUDED) Bump Stop/Strike Pad Extensions/Shims to fit 37” or 39” tires, respectively.
  • EcoDiesel models require 1” Lift Front Coil Spring Spacer Kit — NOT INCLUDED.
  • Alignment required.
  • Sport Frame Bracket HD Reinforcement Kit beefs up the Front Control Arm Sport Frame Brackets. Recommended, but not required.
  • Requires longer shocks (NOT INCLUDED) – Falcon Performance Shocks recommended.