Click or scroll to zoom
Tap or pinch to zoom
JL 2dr: TeraFlex 4.5" Sport ST4 Suspension System – No Shocks – 1614400
by TeraFlex
$1,579.96
SKU 1614400
JL 2dr: 4.5" Sport ST4 Suspension System - No Shocks.
The 4.5" Sport ST4 Suspension System - s higher lift height allows for larger tires and a dominating stance, while the Front Control Arm Sport Frame Brackets maintain its comfortable and stable ride on both highway and trail. FEATURES & BENEFITS JL/JT RT / CT / ST 4" Kits Sport / Sahara fenders: 33" - 37" tires Rubicon fenders: 35" - 40" tires Aftermarket high fenders: Up to 40" tires
Fitment and Installation Notes
- Adjustable Alpine IR Long Control Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angle and tune anti-squat geometry for proper suspension alignment on 3-6" lift kits
- no welding required
- Aftermarket High Fenders: 39"+ (varies)
- Requires aftermarket wheels with 4.75" backspacing or less
- or Offset Wheel Adapters (# 1057000) for stock wheels.
- Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35" or larger tires.
- Sport/Sahara Fenders require 3" Front and 2.5" Rear Bump Stop Extensions and Shims to fit 35" tires.
- Sport/Sahara Fenders require 3.5" Front and 4" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Rubicon Fenders require 2.5" Front and 3" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Aftermarket High Fenders required to fit 39"+ tires. Bump Stop Extension and Shim requirements will vary based on setup. The installer must check for clearances.
- May require an additional 0.5" Bump Stop Strike Pad Shim Kit (# 1959300).
- Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.
- Alignment required.
- Requires longer shocks
DO IT YOURSELF: Please read Instructions thoroughly and completely before beginning installation. Installation by a certified mechanic is recommended. TeraFlex is NOT responsible for any damage or failure resulting from improper installation.
Estimated Labor Time: 9.5 Hours (10.5 Hours w/ shocks) Installation Effort: 9.5 Hours (10.5 Hours w/ shocks)
999319 Jeep JL 4.5in Spring Lift Instructions (2.09 MB) Have a certified mechanic do it for you!
- FEATURES & BENEFITS Alpine RT4:
- Lift Height: 4.5"
- Sport/Sahara Fenders: 33-37" Tires
- Rubicon Fenders: 35"-40" Tires
- Aftermarket High Fenders: 40"+ Tires
- RT Long Arm Suspension Systems:
- Adjustable Alpine IR Long Control Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angle and tune anti-squat geometry for proper suspension alignment on 3-6" lift kits
- Alpine IR Long Control Arms are constructed from durable 42mm x 4mm (front upper) or 50mm x 5mm (front lower, rear upper, rear lower) wall DOM tube for maximum strength
- On higher lifts, Alpine Long Arm Brackets reposition frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during extreme droop as well as shock load transferred through the Alpine IR Long Control Arms
- Bolt-on Alpine Long Arm Brackets are gusseted and reinforced for superior strength with reduced NVH compared to other long arm kits
- Long Arm Suspension Crossmember and RockGuard Transmission Skid Plate & Long Arm Crossmember Reinforcement provide additional strength
- Roque Trail:
- Delivers true Rogue Trail (RT) performance
- Positive, responsive handling with reduced NVH
- Innovative IR Bushings provide unrestricted rotation and flex as well as excellent NVH damping
- Maintenance-free IR Bushings improve on- and off-road ride quality and performance
- Front and Rear HD Forged Adjustable Track Bars and Front (3.5"+) and Rear Track Bar Axle Brackets improve steering response, center axles to optimize vehicle roll center, and reduce body roll for improved handling
- Front SpeedBump and Rear Progressive Bump Stops provide progressive compression during high-speed suspension movement
- 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
- TeraFlex Limited Lifetime Warranty against defects
- Fits:
- JL Wrangler (2-door) Specs:
- Max Tire Diameter:
- Sport/Sahara Fenders: 33" (with 3" front & 2.5" rear bump stops)
- Sport/Sahara Fenders: 37" (with 3.5" front & 4" rear bump stops)
- Rubicon Fenders: 37" (with 2.5" front & 3" rear bump stops)
- Aftermarket High Fenders: 39"+ (varies)
- Installation time= 27.5 Hours (28.5 Hours with shocks)
- product notes=
- Requires aftermarket wheels with 4.75" backspacing or less
- or Offset Wheel Adapters (# 1057000) for stock wheels.
- Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35" or larger tires.
- Sport/Sahara Fenders require 3" Front and 2.5" Rear Bump Stop Extensions and Shims to fit 35" tires.
- Sport/Sahara Fenders require 3.5" Front and 4" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Rubicon Fenders require 2.5" Front and 3" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Aftermarket High Fenders required to fit 39"+ tires. Bump Stop Extension and Shim requirements will vary based on setup. The installer must check for clearances.
- May require an additional 0.5" Bump Stop Strike Pad Shim Kit (# 1959300).
- Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.
- Alignment required.
- Requires longer shocks
- Falcon Performance Shocks recommended.
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product
Description
JL 2dr: 4.5" Sport ST4 Suspension System - No Shocks.
- FEATURES & BENEFITS
- JL/JT RT / CT / ST 4" Kits
- Sport / Sahara fenders: 33" - 37" tires
- Rubicon fenders: 35" - 40" tires
Fitment and Installation Notes
- Requires aftermarket wheels with 4.75" backspacing or less
- Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35" or larger tires.
- Sport/Sahara Fenders require 3" Front and 2.5" Rear Bump Stop Extensions and Shims to fit 35" tires.
- Sport/Sahara Fenders require 3.5" Front and 4" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Rubicon Fenders require 2.5" Front and 3" Rear Bump Stop Extensions and Shims to fit 37" tires.
See the full product description and installation notes for additional requirements and compatibility details.
- Details
-
JL 2dr: 4.5" Sport ST4 Suspension System - No Shocks.
The 4.5" Sport ST4 Suspension System - s higher lift height allows for larger tires and a dominating stance, while the Front Control Arm Sport Frame Brackets maintain its comfortable and stable ride on both highway and trail. FEATURES & BENEFITS JL/JT RT / CT / ST 4" Kits Sport / Sahara fenders: 33" - 37" tires Rubicon fenders: 35" - 40" tires Aftermarket high fenders: Up to 40" tires
Fitment and Installation Notes
- Adjustable Alpine IR Long Control Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angle and tune anti-squat geometry for proper suspension alignment on 3-6" lift kits
- no welding required
- Aftermarket High Fenders: 39"+ (varies)
- Requires aftermarket wheels with 4.75" backspacing or less
- or Offset Wheel Adapters (# 1057000) for stock wheels.
- Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35" or larger tires.
- Sport/Sahara Fenders require 3" Front and 2.5" Rear Bump Stop Extensions and Shims to fit 35" tires.
- Sport/Sahara Fenders require 3.5" Front and 4" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Rubicon Fenders require 2.5" Front and 3" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Aftermarket High Fenders required to fit 39"+ tires. Bump Stop Extension and Shim requirements will vary based on setup. The installer must check for clearances.
- May require an additional 0.5" Bump Stop Strike Pad Shim Kit (# 1959300).
- Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.
- Alignment required.
- Requires longer shocks
Features & Benefits
- Lift Height: 4.5"
- Sport/Sahara Fenders: 33-37" Tires
- Rubicon Fenders: 35"-40" Tires
- Aftermarket High Fenders: 40"+ Tires
- RT Long Arm Suspension Systems:
- Adjustable Alpine IR Long Control Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angle and tune anti-squat geometry for proper suspension alignment on 3-6" lift kits
- Alpine IR Long Control Arms are constructed from durable 42mm x 4mm (front upper) or 50mm x 5mm (front lower, rear upper, rear lower) wall DOM tube for maximum strength
- On higher lifts, Alpine Long Arm Brackets reposition frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during extreme droop as well as shock load transferred through the Alpine IR Long Control Arms
- Bolt-on Alpine Long Arm Brackets are gusseted and reinforced for superior strength with reduced NVH compared to other long arm kits
- Long Arm Suspension Crossmember and RockGuard Transmission Skid Plate & Long Arm Crossmember Reinforcement provide additional strength
- Roque Trail:
- Delivers true Rogue Trail (RT) performance
- Positive, responsive handling with reduced NVH
- Innovative IR Bushings provide unrestricted rotation and flex as well as excellent NVH damping
- Maintenance-free IR Bushings improve on- and off-road ride quality and performance
- Front and Rear HD Forged Adjustable Track Bars and Front (3.5"+) and Rear Track Bar Axle Brackets improve steering response, center axles to optimize vehicle roll center, and reduce body roll for improved handling
- Front SpeedBump and Rear Progressive Bump Stops provide progressive compression during high-speed suspension movement
- 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
- TeraFlex Limited Lifetime Warranty against defects
- Fits:
- JL Wrangler (2-door) Specs:
- Max Tire Diameter:
- Sport/Sahara Fenders: 33" (with 3" front & 2.5" rear bump stops)
- Sport/Sahara Fenders: 37" (with 3.5" front & 4" rear bump stops)
- Rubicon Fenders: 37" (with 2.5" front & 3" rear bump stops)
- Aftermarket High Fenders: 39"+ (varies)
- Installation time= 27.5 Hours (28.5 Hours with shocks)
- product notes=
- Requires aftermarket wheels with 4.75" backspacing or less
- or Offset Wheel Adapters (# 1057000) for stock wheels.
- Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35" or larger tires.
- Sport/Sahara Fenders require 3" Front and 2.5" Rear Bump Stop Extensions and Shims to fit 35" tires.
- Sport/Sahara Fenders require 3.5" Front and 4" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Rubicon Fenders require 2.5" Front and 3" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Aftermarket High Fenders required to fit 39"+ tires. Bump Stop Extension and Shim requirements will vary based on setup. The installer must check for clearances.
- May require an additional 0.5" Bump Stop Strike Pad Shim Kit (# 1959300).
- Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.
- Alignment required.
- Requires longer shocks
- Falcon Performance Shocks recommended.
- JL/JT RT / CT / ST 4" Kits
- Sport / Sahara fenders: 33" - 37" tires
- Rubicon fenders: 35" - 40" tires
- Requires aftermarket wheels with 4.75" backspacing or less
- Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guards to fit 35" or larger tires.
- Sport/Sahara Fenders require 3" Front and 2.5" Rear Bump Stop Extensions and Shims to fit 35" tires.
- Sport/Sahara Fenders require 3.5" Front and 4" Rear Bump Stop Extensions and Shims to fit 37" tires.
- Rubicon Fenders require 2.5" Front and 3" Rear Bump Stop Extensions and Shims to fit 37" tires.
