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🧾 Overview
The TeraFlex 3.5" Alpine RT3 Short Arm Extended-Travel Suspension System for the Jeep Gladiator JT represents the pinnacle of short-arm suspension performance. Designed for drivers who demand maximum articulation, precise handling, and premium ride quality, the RT3 system builds on the proven Alpine Rogue Trail (RT) platform with extended-travel capability and advanced geometry correction.
At the core of the RT3 system are TeraFlex Alpine IR Short Arms featuring patented Independent Rotation (IR) bushings. These eliminate bushing bind throughout the suspension cycle, allowing unrestricted droop, smoother articulation, and a noticeably quieter, more controlled ride both on-road and off-road. Combined with HD forged adjustable track bars and dedicated track bar brackets, this system restores proper axle centering, roll center, and steering response—dramatically reducing body roll and tail wag.
The RT3 system is engineered to safely deliver up to 16 inches of rear suspension travel, making it ideal for aggressive trail use, overland builds, and high-performance off-road applications. SpeedBump progressive bump stops absorb harsh impacts, while extended-travel rear components ensure consistent performance through the full range of motion.
✔ Extended-travel Alpine RT performance
✔ Premium IR control arms for unmatched articulation
✔ Forged track bars & brackets for precise axle control
✔ Designed for serious trail and overland builds
🛠 Installation
- Bolt-on suspension system
- No cutting or welding required
- Designed for extended-travel short arm geometry
📌 Specs
- Alpine IR Short Arms with Independent Rotation bushings eliminate bind
- Extended-travel design provides up to 16" of rear suspension travel
- HD forged adjustable track bars center axles and restore roll center
- Track bar brackets improve steering response and handling
- SpeedBump progressive bump stops absorb harsh trail impacts
- Optimized caster, pinion, anti-squat, and roll axis geometry
- Reduced NVH for superior on-road comfort
📌 Technical Highlights
- Suspension Type: Short Arm Extended-Travel System (No Shocks)
- Lift Height: 3.5 Inches
- Rear Suspension Travel: Up to 16 Inches
- Control Arms: Adjustable Alpine IR (Front & Rear)
- Track Bars: HD Forged Adjustable (Front & Rear)
📌 What’s Included
- 3.5" Front Lift Coil Springs
- 3.5" Rear Lift Coil Springs
- Alpine IR Adjustable Short Arm Kit (8-Arm)
- Rear Extended-Travel Upper Control Arm Axle Brackets
- HD Forged Adjustable Front Track Bar
- HD Forged Adjustable Rear Track Bar
- Front Lower Track Bar Bracket
- Rear Lower Track Bar Bracket
- SpeedBump Progressive Bump Stops (Front & Rear)
- Front Sway Bar Quick Disconnect Kit
- Forged Rear Sway Bar Kit
- Rear Driveshaft Lowering Kit
- Extended-Travel Rear Accessory Kit
- Rear Coil Spring Retainers (Upper & Lower)
- Front & Rear Brake Line Anchor Kits
- All required mounting hardware
- 📏 Maximum Tire Size
- Sport / Overland Fenders:
- 33" tires (2" front / 1" rear bump stops)
- 35" tires (3" front / 2.5" rear bump stops)
- Rubicon / Mojave Fenders:
- 35" tires (2" front / 1" rear bump stops)
- 37" tires (2" front / 2.5" rear bump stops)
⚠️ Fitment Notes
- Jeep Gladiator JT
- Important Notes:
- Shocks NOT included
- Falcon Performance Shocks recommended (sold separately)
- Designed for vehicles with extended-travel suspension setups