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 angle and pinion angles as well as optimize rear pinion angles, anti-squat geometry, and tire position. On 4-6” 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.
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 to for unsurpassed handling.
In addition to optimizing suspension geometry, adjustable Alpine IR Long Control Arms and Alpine IR Control Arms feature our all-new IR (Independent Rotation) Bushings. These innovative bushings remove bushing bind during full suspension travel whether on the highway or the trail. This results in unrestricted droop as well as a noticeable ride improvement.
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. IR Bushings reduce bind during droop for less overall bushing load during articulation. TeraFlex suspension systems provide reduced noise, vibration, and harshness (NVH).
Alpine RT Suspension Systems are for the Jeeper who wants it all!
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. Alpine RT Suspension Systems are offered with Falcon Series 3.3 Fast Adjust Piggyback Shocks or without shock absorbers. Other Falcon shocks are available separately.
JK Wrangler Unlimited (4-Door)
Lift Height: 4”
Max Tire Diameter: 37”
4” Lift Coil Springs (JK4 Front: # 1853402; JK4 Rear: # 1854402)
0.5" Lift Coil Spring Spacers (Front x 2: 1953100; Rear x 2: # 1954105)
Alpine Long IR Control Arm & Bracket Kit – 8-Arm (3-6” Lift) (# 1315011)
HD Forged Adjustable Front Track Bar (0-6” Lift) (# 1753418)
HD Forged Adjustable Rear Track Bar (0-6” Lift) (# 1754418)
Front Track Bar Bracket Gusset (# 4951800)
Rear Track Bar Axle Bracket Kit (3-6” Lift) (# 1954777)
Speedbump & Progressive Bump Stop Kit (# 1958250)
1.25” SpeedBump Front Lower Bump Stop Pad Kit (# 1467125)
0.75” SpeedBump Rear Lower Bump Stop Strike Pad Kit (x 3: # 1954600)
10” Front Sway Bar Quick Disconnect Kit (3-4” Lift) (# 1753000)
12.25” Rear Sway Bar Link Kit (3-4” Lift) (# 1754500)
26” Front Brake Line Kit (# 4353310)
30” Rear Brake Line Kit (# 4350310)
Front Brake Line Anchor Kit (# 1101255)
Exhaust Spacer Kit (# 2610000)
Falcon Series 3.3 Fast Adjust Piggyback Shocks (3-4.5” Lift) (JK4: # 03-01-33-400-253)
All necessary hardware
Features & Benefits:
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/ reduce NVH compared to other long arm kits
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
Requires aftermarket wheels w/ 4.5” backspacing or less – or Offset Wheel Adapters (# 1055000) for stock wheels – NOT INCLUDED.
We highly recommend driveshaft modifications. See the TeraFlex Rzeppa High-Angle CV Kit (# 1744014).
Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.
Requires cutting and welding.
Requires longer shocks (NOT INCLUDED in base kit) – Falcon Performance Shocks recommended.
Install Time: 20 Hours
Alpine RT4 Long Arm Configurations:
w/ Falcon 3.3 Fast Adjust Shocks (# 1234033)
No Shock Absorbers (# 1234000)
w/ Falcon 3.3 Fast Adjust Shocks (# 1334033)