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These all-inclusive TeraFlex Sport ST (Street & Trail) Suspensions Systems deliver true street & trail (ST) performance and capability in a dependable and maintenance-free package. Developed for the Jeep enthusiast looking for highway stability and trail performance in a no-compromise package, the 2.5” Sport ST2 Suspension System adds preset front lower Sport Control Arms, an HD Forged Adjustable Front Track Bar, rear track bar bracket, and more. The additional ground clearance allows for fitment of larger diameter tires with excellent on- and off-road manners. All Sport ST Suspension Systems feature lift coil springs, bump stops, and front sway bar quick disconnects optimized for stated lift height. Sport ST2 and Sport ST3 Suspension Systems add preset Sport Control Arms (2.5”+: front lower; 3”: rear upper, rear lower) to balance caster and pinion angles as well as optimize rear pinion angles, anti-squat geometry, and tire position. These systems also include our HD Forged Adjustable Front Track Bar and rear track bar bracket, which improve steering response, center the axles to optimize vehicle roll center, and reduce body roll for unsurpassed handling. This results in a simple “install and drive” bolt-on installation with no cutting or welding required. These maintenance-free suspension systems provide superior on-road ride quality and comfort with maximum off-road flex. TeraFlex suspension systems provide reduced noise, vibration, and harshness (NVH). Sport ST Suspension Systems can be installed on Friday, wheeled on Saturday, and driven to church on Sunday! We recommend Falcon Performance Shocks. Falcon shock absorbers and TeraFlex lift coil springs have been engineered together to improve both compression and rebound for optimal vehicle stability. Sport ST Suspension Systems are offered with a choice of select Falcon Performance Shocks or without shock absorbers. -
Engineered with drivability in mind, the ultra-simple TeraFlex JK 4dr: 2.5” Coil Spring Lift Kit comes with the basic components required to fit larger tires for increased ground clearance and better off-road capability without compromising on-road handling. Every TeraFlex suspension system is engineered with drivability and performance in mind. Properly developed suspension geometry, roll center, and load tuning ensures that all factory stability controls remain functional and within the parameters that Jeep originally engineered into the vehicle. Not only do TeraFlex kits drive straight, but they will crawl over anything to get you there and back! Does NOT include shocks. We recommend Falcon Performance Shocks or TeraFlex 9550 VSS Twin-Tube Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability. 2.5” Coil Spring Base Lift Kits are offered with TeraFlex 9550 VSS Twin-Tube Shocks, with shock extensions, or without shock absorbers or extensions. Falcon Performance Shocks are available separately. -
The TeraFlex JK 4dr: 3” Coil Spring Base Kit includes just the basic lift components only and doesn’t have the drivability of a full suspension system. REQUIRES longer preset or adjustable control arms and adjustable front track bar to correct suspension geometry. Does NOT include shocks. We recommend Falcon Performance Shocks or TeraFlex 9550 VSS Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability. Coil Spring Base Lift Kits are offered with TeraFlex 9550 VSS Twin-Tube Shocks or without shock absorbers. Falcon Performance Shocks are available separately. -
These all-inclusive TeraFlex Sport ST (Street & Trail) Suspensions Systems deliver true street & trail (ST) performance and capability in a dependable and maintenance-free package. Developed for the Jeep enthusiast looking for highway stability and trail performance in a no-compromise package, the 2.5” Sport ST2 Suspension System adds preset front lower Sport Control Arms, an HD Forged Adjustable Front Track Bar, rear track bar bracket, and more. The additional ground clearance allows for fitment of larger diameter tires with excellent on- and off-road manners. All Sport ST Suspension Systems feature lift coil springs, bump stops, and front sway bar quick disconnects optimized for stated lift height. Sport ST2 and Sport ST3 Suspension Systems add preset Sport Control Arms (2.5”+: front lower; 3”: rear upper, rear lower) to balance caster and pinion angles as well as optimize rear pinion angles, anti-squat geometry, and tire position. These systems also include our HD Forged Adjustable Front Track Bar and rear track bar bracket, which improve steering response, center the axles to optimize vehicle roll center, and reduce body roll for unsurpassed handling. This results in 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. TeraFlex suspension systems provide reduced noise, vibration, and harshness (NVH). Sport ST Suspension Systems can be installed on Friday, wheeled on Saturday, and driven to church on Sunday! We recommend Falcon Performance Shocks. Falcon shock absorbers and TeraFlex lift coil springs have been engineered together to improve both compression and rebound for optimal vehicle stability. Sport ST Suspension Systems are offered with a choice of select Falcon Performance Shocks or without shock absorbers. -
The rear axle experiences tremendous amounts of lateral force while driving and those effects increase exponentially during off-road driving. The TeraFlex JL: Rear HD Forged Adjustable Track Bar withstands these abusive side loads to dramatically improve handling. Track Bars also allow lateral adjustment of the axle for proper axle alignment as well as cycling through full suspension travel without interfering with other components. Our rear track bar also maximizes exhaust and differential cover clearances. Our Rear HD Forged Adjustable Track Bar is recommended for 2.5-6” lifts. Bolts into factory locations or our Rear Track Bar Axle Bracket (recommended for 2.5”+ lifts) – no cutting or welding required. A must for anyone who takes their rig off road! -
The front axle experiences tremendous amounts of lateral force while turning and those effects increase exponentially during off-road driving. The TeraFlex JK: Front HD Adjustable Track Bars withstand these abusive side loads to dramatically improve steering response and handling. Track Bars also allow lateral adjustment of the axle for proper axle alignment as well as cycling through full suspension travel without interfering with other components. Our Front HD Adjustable Track Bar is recommended for 2.5-6” lifts. Bolts into factory locations – no cutting or welding required. This is the same Front Track Bar used in our 2.5-6” Suspension Systems (Alpine RT, Alpine CT, Sport ST, and w/ 8 Alpine Short Control Arms). A must for anyone who takes their rig off road! -
TeraFlex JK: Alpine Short Control Arms provide complete alignment adjustability and dependability for maximum performance on JK Wrangler/Unlimited models with 2-4” lifts. Bolts to the factory control arm mounting brackets. Can be added to any existing suspension lift. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. -
TeraFlex JK: Alpine Short Control Arms provide complete alignment adjustability and dependability for maximum performance on JK Wrangler/Unlimited models with 2-4” lifts. Bolts to the factory control arm mounting brackets. Can be added to any existing suspension lift. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. -
TeraFlex JL: Alpine Short Control Arms provide complete alignment adjustability and dependability for maximum performance on JL Wrangler/Unlimited models with 0-4.5” lifts. Bolts to the factory control arm mounting brackets. Can be added to any existing suspension lift. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. -
TeraFlex JK: Alpine Long Control Arms and Alpine Long Arm Brackets (not included) provide complete alignment adjustability and dependability for maximum performance on JK Wrangler/Unlimited models with 3-6” lifts. Can be added to an existing suspension lift. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. MUST be used with TeraFlex JK: Alpine Long Arm Bracket Kit (# 1957000) – NOT INCLUDED. On higher lifts, Alpine Long Arm Brackets reposition the frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during droop and shock load transferred through the control arms. CAD-engineered Alpine Long Arm Brackets are designed for maximum strength. By streamlining the frame-end mounting points, we were able to incorporate both upper and lower mounts in each bracket thus simplifying installation while maintaining a factory appearance. -
TeraFlex JT: Alpine Short Control Arms provide complete alignment adjustability and dependability for maximum performance on JT Gladiator with 0–4.5” lifts. Bolts to the factory control arm mounting brackets. Can be added to any existing suspension lift. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. -
TeraFlex JT: Alpine Short Control Arms provide complete alignment adjustability and dependability for maximum performance on JT Gladiator models with 0-4.5” lifts. Bolts to the factory control arm mounting brackets. Can be added to any existing suspension lift. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. -
"The TeraFlex JK 4dr: 4” Suspension System w/ 8 Alpine Short Control Arms delivers the necessary components to lift your 4-door JK Wrangler Unlimited to conquer the most extreme trails and conditions. Features a complete set of adjustable Alpine Short Control Arms, HD Forged Adjustable Front Track Bar, and rear track bar bracket to optimize geometry. An adjustable rear track bar is recommended. Every TeraFlex suspension system is engineered with drivability and performance in mind. Properly developed suspension geometry, roll center, and load tuning ensures that all factory stability controls remain functional and within the parameters that Jeep originally engineered into the vehicle. Not only do TeraFlex kits drive straight, but they will crawl over anything to get you there and back! Does NOT include shocks. We recommend Falcon Performance Shocks or TeraFlex 9550 VSS Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability. Suspension Systems w/ 8 Alpine Short Control Arms are offered with TeraFlex 9550 VSS Twin-Tube Shocks or without shock absorbers. Falcon Performance Shocks are available separately. -
The TeraFlex JK 4dr: 4” Coil Spring Base Lift Kit includes just the basic lift components only and doesn’t have the drivability of a full suspension system. Requires adjustable control arms and adjustable front track bar to correct suspension geometry. An adjustable rear track bar is recommended. Does NOT include shocks. We recommend Falcon Performance Shocks or TeraFlex 9550 VSS Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability. Coil Spring Base Lift Kits are offered with TeraFlex 9550 VSS Twin-Tube Shocks or without shock absorbers. Falcon Performance Shocks are available separately. -
TeraFlex 4.5” Coil Spring Base Lift Kits include just the basic lift components only and do not have the drivability of a full suspension system. Requires Front Control Arm Sport Brackets or adjustable short or long Alpine (IR) Control Arms, and Front and/or Rear HD Forged Adjustable Track Bar(s) to correct suspension geometry. Does NOT include shocks. We recommend Falcon Performance Shocks or TeraFlex 9550 VSS Twin-Tube Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability. 4.5” Coil Spring Base Lift Kits are offered with TeraFlex 9550 VSS Twin-Tube Shocks or without shock absorbers. Falcon Performance Shocks are available separately. -
TeraFlex JT: Rear Lift Coil Springs are perfectly engineered for your JT Jeep Gladiator. Our engineers focused on extensive rate tuning and dynamic balance between front and rear and side-to-side load bias to produce Lift Coil Springs that deliver unsurpassed highway handling and off-road performance. Out back, we chose progressive triple-rate lift coil springs that provide optimal performance both on and off road as well as while towing. These progressive triple-rate coil springs provide consistent performance and predictable handling throughout normal street driving – just like a linear rate spring. When the axle begins to droop, the softer sprung upper section of the coil spring begins to unwind for maximum flex and spring retention. The stiffer sprung lower section of the coil provides stability while towing. Additionally, we lowered the towing coils to improve ride quality while unladen. We recommend pairing TeraFlex Lift Coil Springs with Falcon Performance Shocks for superior performance. TeraFlex coil springs and Falcon shock absorbers have been engineered together to improve both compression and rebound for optimal vehicle stability.
