Icon Vehicle Dynamics K53157 Stage 3 RXT Rear Suspension System Lift 1.75-4" Toyota Tundra 07-21

ICON RXT Rear Suspension System — 2007–2021 Toyota Tundra

The ICON RXT Rear Suspension System for the 2007–2021 Toyota Tundra is engineered to improve off-road capability, ride quality, and overall vehicle dynamics. The system combines a multi-rate leaf spring, a hydraulic rear bump stop kit, and RXT-specific 2.5" Aluminum Series rear shocks to deliver increased wheel travel, adjustable spring rates, and durable, serviceable components.

• Multi-rate leaf spring: 3 user-adjustable spring rates for varying vehicle setups; military-wrap front eyelet for increased durability; galvanized leaf separators for reduced friction and corrosion resistance; leaf tip inserts to reduce noise and improve comfort; direct bolt-in to OEM spring location.
• Increased wheel travel: Potential for up to 20% more wheel travel when used with RXT shocks without sacrificing up-travel.
• RXT rear shock options: 2.5" Aluminum Series shocks with one-piece impact-extruded aluminum cylinders for corrosion resistance; side-mounted lower eyelet for increased travel using the factory mount; vehicle-specific valving and increased oil volume; 10" aluminum remote reservoirs for consistent damping as temperature rises; fully rebuildable and revalveable.
• Advanced damping control: Omega Series two-tube bypass option providing 28 settings of compression and rebound adjustment for precise tuning.
• Hydraulic rear bump stop kit: 2.5" travel hydraulic bump stops to reduce rear-end 'kick' and improve overall performance.
• Tested for durability: ICON 1K development testing under rigorous off-road conditions to validate tune, strength, and durability.
• Installation: Direct bolt-in leaf spring location and straightforward shock installation for a simplified fitment process.
• Lift range: Raises rear approximately 1.75"–4.0" (without rear sway bar).

Notes:

• OEM wheels & tires fitment: Yes.
• Recommended aftermarket wheels: ICON Alloys — 17x8.5" with 5.75" backspace / 25mm offset.
• Recommended aftermarket wheels: ICON Alloys — 18x9" with 6.00" backspace / 25mm offset.
• Recommended aftermarket wheels: ICON Alloys — 20x9" with 5.625" backspace / 16mm offset.
• Recommended tires: 35" x 12.50" (larger tires may fit but fender trimming and modifications will be required).
• These are stand-alone kits and are not to be used in conjunction with any other aftermarket kits.
• Shocks are fully serviceable. Coilover heights indicated are for a stock-equipped vehicle.
• Not compatible with TRD rear sway bar kit.
• Ships in multiple boxes.

Icon Vehicle Dynamics K53157 Stage 3 RXT Rear Suspension System Lift 1.75-4" Toyota Tundra 07-21 - Features