TeraFlex Alpine RT (Rogue Trail) Suspension Systems build on our already capable Alpine CT (Cross-Trail) Suspension Systems. These systems include all our top-of-the-line components. The 4.5” Alpine RT4 Long Arm Suspension System excels on the highway, off-road, through the desert, or rock crawling! Bolt-on Alpine IR Long Arms & Brackets, HD Forged Adjustable Track Bars, and Track Bar Brackets allow full suspension adjustability, while the SpeedBumps smooth out unexpected trail bumps. This is the ultimate suspension with a lifetime warranty. Adjustable Alpine IR Long Arms balance front caster angle and pinion angles as well as optimize rear pinion angles, anti-squat geometry, and tire position on vehicles with 3–6” lifts. On higher lifts, 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 Long Control Arms. Alpine IR Control Arms feature our Independent Rotation (IR) Bushings. These innovative bushings remove bushing bind during full suspension travel for less overall bushing load during articulation resulting in unrestricted droop as well as a noticeable ride improvement whether on the highway or the trail. HD Forged Adjustable Track Bars and Track Bar Bracket(s) improve steering response, center the axles to optimize vehicle roll center, and reduce body roll for unsurpassed handling. This results in improved suspension geometry and relaxed control arm angles for a superior ride quality and performance regardless of terrain. These systems restore front and rear roll axis angles to minimize brake dive and acceleration squat. TeraFlex suspension systems provide reduced noise, vibration, and harshness (NVH). Alpine RT Suspension Systems are for the Jeeper who wants it all! Does NOT include shocks. We recommend Falcon Performance Shocks. Sold separately.

Kit Includes:
- Front & rear coil springs
- Alpine IR long control arm & bracket kit
- Front adjustable track bar
- Rear adjustable track bar
- Front track bar axle bracket
- Rear track bar axle bracket
- Speedbump & Progressive bump stop kit front & rear
- Bump stop strike pad & shim kits front & rear
- Front sway bar quick disconnect kit
- Rear sway bar link kit
- Rock Guard transmission skid plate & long arm crossmember reinforcement
- Front brake line anchor kit
- Necessary hardware
- Installation instructions

Lift Height: 4.5”
Sport/Sahara Fenders: 35–37” Tires
Rubicon Fenders: 37” Tires
Aftermarket High Fenders: 39”+ Tires RT Long Arm Suspension Systems
Adjustable Alpine IR Long Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angles and tune anti-squat geometry for proper suspension alignment on 3–6” lift kits
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, bolt-on 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 Long Control Arms
Brackets are gusseted and reinforced for superior strength w/ reduced NVH compared to other long arm kits
Brackets feature a premium triple-stage powder coating that provides superior durability and corrosion resistance
Long Arm Suspension Crossmember and RockGuard Transmission Skid Plate / Long Arm Crossmember Reinforcement provide additional strength Roque Trail:
Delivers true Rogue Trail (RT) performance
Dependable performance w/ zero worries • Positive, responsive handling w/ reduced NVH
Innovative, maintenance-free IR Bushings provide unrestricted rotation and flex as well as excellent NVH damping to improve on- and off-road ride quality and performance
HD Forged Adjustable Track Bars and Track Bar Bracket(s) improve steering response, center axles to optimize vehicle roll center, and reduce body roll for unsurpassed 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
Estimated installation time: 27.5 hours

Notes:
** Requires wheels with 4.75" backspacing or less OR wheel offset adapters- not included
*** Models with plastic bumpers require removal of bumper-to-fender wind deflector/splash guard to fit 35" or larger tires
**** Aftermarket fenders required to fit 39"+ tires
****** Requires cutting/removal of factory control arm bracketry to install long arm brackets
******* Sport/Sahara fenders require 3" front and 2.5" rear strike pad extension/shims to fit 35" tires OR 3.5" front and 4" rear strike pad extension/shims to fit 37" tires
******** Rubicon fenders require 2.5" and 3" rear strike pad extension/shims to fit 37" tires

TeraFlex 4.5" Alpine RT4 Long Arm Extended Travel Suspension | No Shocks | 2 Door (Wrangler JL 2018+)+)

TeraFlex

Product Description