JK 4dr: 4" Alpine RT4 Long Arm Suspension System – No Shocks
The TeraFlex 4" Alpine RT4 Long Arm Suspension System is developed for the off-roader craving trails and rocks as well as highway control. The Alpine RT4 provides full suspension adjustability both on- and off-road!
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 TeraFlex 4" Alpine RT4 Long Arm Suspension System is developed for the off-roader craving trails and rocks as well as highway control in a no-compromise package. With its Alpine IR Long Control Arms & Brackets this suspension system provides a completely new driving experience. Combined with the HD Adjustable Front and Rear Track Bars the Alpine RT4 provides full suspension adjustability both on- and off-road! Adjustable Alpine IR Long Control Arms balance front caster 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 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 control arms. The HD Forged Adjustable Front and Rear (4"+) Track Bars and Rear Track Bar Bracket improve steering response center the axles to optimize vehicle roll center and reduce body roll for unsurpassed handling. Alpine IR Control Arms feature our all-new IR (Independent Rotation) 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. 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!
Write Your Own Review
20 Hours install time
Alpine RT4: • Lift Height: 4" • Max Tire Diameter: 37" 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 (upper) or 50mm x 5mm (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 • Alpine Long Arm Brackets are gusseted and reinforced for superior strength w/ reduced NVH compared to other long arm kits Rogue Trail: • Delivers true Rogue Trail (RT) performance • Dependable performance w/ zero worries • Positive, responsive handling w/ 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 • HD Forged Adjustable Front and Rear (4"+) Track Bars and Rear Track Bar Bracket 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 • Coil spring retainers prevent the springs from unseating during full suspension travel • Full range of movement for off-road flex and articulation • TeraFlex Limited Lifetime Warranty against defects
Fits: • JK Wrangler Unlimited (4-Door) Specs: • Lift Height: 4" • Max Tire Diameter: 37"
• 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 our High-Angle Rzeppa CV Joint Kit (# 1744014). • Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets. • Requires cutting and welding. • Alignment required. • Requires longer shocks (NOT INCLUDED in base kit) – Falcon Performance Shocks recommended.