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Teraflex 4in Alpine CT4 Suspension System Lift Kit - No Shocks - JK 4DR

Suspension
Lift Kits
4-5in Lifts >Teraflex 4in Alpine CT4 Suspension System Lift Kit - No Shocks - JK 4DR

Teraflex 4in Alpine CT4 Suspension System Lift Kit - No Shocks

JK 4DR

INCLUDED IN PRICE

Spring Box $979.99

1 x Teraflex 4in Spring Box Kit - JK 4Dr
TER1404000

In stock!
Suspension System $556.99

1 x Teraflex SpeedBump & Progressive Bump Stop Kit Front and Rear - 3-3.5in Lift - JK
TER1958250

In stock!
Flex Arms $709.99

1 x Teraflex Elite LCG Long Adjustable FlexArm Bracket Kit - JK
TER1957000

In stock!
Lower Flex Arms $994.99

1 x Teraflex Alpine Lower Long Arm Kit - JK
TER1315001

In stock!
Upper Flex Arms $706.99

1 x Teraflex Alpine Upper Long Arm Kit - JK
TER1315002

In stock!
Front Track Bar $322.99

1 x Teraflex Forged Adjustable Trackbar - Front - JK
TER1753418

In stock!
Rear Track Bar $310.99

1 x Teraflex Forged Adjustable Track Bar - Rear - JK
TER1754418

In stock!

BUNDLE ASSEMBLY OPTIONS

Choose Shocks

$4,582.93

13746 entries9164 entries - 2025 Northridge4x4 Jeep Giveaway

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2025 NORTHRIDGE4X4 JEEP® GIVEAWAY
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Part # 1324000

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Product Resources

Installation Instructions

Fitment Details

Features & Product Details

TeraFlex Alpine CT (Cross-Trail) Suspension Systems are built heavy-duty, and can withstand rugged off-road use without compromising Jeep JKU highway handling

The Alpine suspension system is a perfect balance for impeccable trail performance and maintaining a comfortable and reliable daily commute. Fully adjustable long flex arms and brackets with an adjustable rear track bar offer full suspension customization on and off-road. Maintenance-free

High-end package with full suspension articulation and reduced noise vibration and harshness (NVH)

The long flex arms are designed for efficient tuning of the pinion, caster, anti-squat, and tire position. The adjustable long flex arms also optimize front and rear roll centers, while the adjustable front and rear track bars eliminate side-to-side movement. These components work in harmony to produce a minimal brake dive and squat under acceleration, to better put the power down on any surface. Does NOT include shocks. Requires cutting and welding. See installation video for more details.

FEATURES:

Dependable performance w/ zero worries

Positive, responsive handling w/ reduced noise, vibration, & harshness (NVH)

Fully adjustable Alpine long flexarms optimizes correct caster & pinion angles for 3-6” lift kits

High-quality, maintenance-free factory-style bushings provide excellent vibration damping & ride quality

HD forged adjustable front & rear track bars

SpeedBump progressive bump stops

Full range of movement for off-road flex & articulation

SPECS:

Fitment: JKU Wrangler Unlimited (4-door)

Lift height: 4”

Max tire diameter: 37”

4” lift coil springs

Eight (8) fully adjustable Alpine long flexarms

Long flexarm brackets (weld-on)

Front & rear brake lines

Front brake line anchor kit

Front sway bar disconnects

Rear sway bar links

Exhaust spacers

All necessary installation hardware

Notes:

Requires aftermarket wheels w/ 4.75” backspacing or less – or Offset Wheel Adapters (# 1055000) for stock wheels – NOT INCLUDED.

We highly recommend driveshaft modifications such as our High-Angle Rzeppa CV Driveshafts or High-Angle Rzeppa CV Joint Kit (# 1744014).

Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.

Alignment required.

Requires longer shocks (NOT INCLUDED in base kit)

Falcon SP2 2.1 Monotube Shocks deliver increased stability, improved ride quality, and comfort for daily driven Jeeps in a compact and affordable package. SP2 2.1 Shocks have been optimized for on- and off-road driving. “High-Value Performance” is the driving force behind our vehicle-specific dampers for Jeeps, trucks, and SUVs. These Jeep-specific shock absorbers deliver increased stability, improved ride quality, and comfort for daily driven vehicles as well as race-inspired performance, handling, and stability for off-road rigs.

SP2 Mode Adjust:

• Choose between Soft and Performance modes during install

• 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

Falcon Jeep Shocks (all):

• Vehicle-specific shock absorbers

• 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 (Series 2 and Series 3 Shocks)

• 2.125” shock body for high value performance (1.1 Monotube Shocks

• 6061-T6 aluminum alloy shock body resists Impact to protect internal components

• Smooth honed internal shock body surface for long-term performance

• 3/4” (Series 2 and Series 3 Shocks) or 1/2” (1.1 Monotube Shock) induction hardened chrome plated shaft resists rock damage, corrosion, and shaft buckling

• Large shaft diameter provides a wide range of adjustment on adjustable shocks

• 1-piece energized Teflon bronze piston wear band

• 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

• Red Line 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

• Serviceable and rebuildable (factory serviced)

• Designed, engineered, CNC machined, and assembled in-house from domestic and globally sourced components

• Patented design

• 3-year warranty

Falcon SP2 3.3 Fast Adjust Piggyback Shocks offer a wide range of adjustability with their easy to use 3-Position Fast Adjust Knob. Settings include Soft, Custom, and Firm. The Custom setting incorporates an 8-Position Micro Adjust Dial for more precise tuning between Soft and Firm. “High-Value Performance” is the driving force behind our vehicle-specific dampers for Jeeps, trucks, and SUVs. These Jeep-specific shock absorbers deliver increased stability, improved ride quality, and comfort for daily driven vehicles as well as race-inspired performance, handling, and stability for off-road rigs. Falcon Performance Shocks by TeraFlex. SP2 3.3 Fast Adjust: • SP2 3.3 Fast Adjust Piggyback Shocks offer a wide range of adjustability for specific terrain and/or handling characteristics • 3-Position Fast Adjust Knob for large damping adjustments • Settings: Soft, Custom, Firm • Custom setting includes an 8-Position Micro Adjust Dial for finer damping adjustments • Ideal for daily driven Jeeps as well as the serious enthusiast wanting to adjust damping for all driving conditions JK: • JK corner-specific shock absorber w/ race-inspired performance • Front upper offset stud design provides maximum shock body to frame clearance during articulation • Outboard mounting increases clearance for lifted vehicles w/ raised track bar brackets • Rear shock body (all) and reservoir (piggyback) positioned on bottom eliminates shaft damage from rocks kicked up by the tires • Rear Shock Skid Plates available separately Piggyback: • Piggyback design increases oil and gas capacity for reduced heat • Moving gas charge to piggyback reservoir allows maximum amount of travel • Flows 6x more oil than restrictive reservoir hose designs • Eliminates common leakage issues found in banjo and swivel fittings • Front shock’s unique horizontal piggyback reservoir increases tire clearance • Cartridge Upgrade Kits are available separately

Features:

SP2 Mode Adjust:

Choose between Soft and Performance modes during install

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

Falcon Jeep Shocks (all):

Vehicle-specific shock absorbers

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 (Series 2 and Series 3 Shocks)

2.125” shock body for high value performance (1.1 Monotube Shocks

6061-T6 aluminum alloy shock body resists Impact to protect internal components

Smooth honed internal shock body surface for long-term performance

3/4” (Series 2 and Series 3 Shocks) or 1/2” (1.1 Monotube Shock) induction hardened chrome plated shaft resists rock damage, corrosion, and shaft buckling

Large shaft diameter provides a wide range of adjustment on adjustable shocks

1-piece energized Teflon bronze piston wear band

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

Red Line 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

Serviceable and rebuildable (factory serviced)

Designed, engineered, CNC machined, and assembled in-house from domestic and globally sourced components

Patented design

Notes(s):

Upgradeable to 3.5 aDAPT or 3.5 e-Adjust via Cartridge Upgrade Kits for quick compression adjustments. Sold separately

Bump stop configuration varies depending on shock absorber collapsed length, tire size, and fenders – See instructions for proper configuration for your application.