ICON 158509 Multi-Rate RXT Leaf Spring Pack for 07-21 Toyota Tundra Rear

Vehicle Fitment

• 2007-2021 Toyota Tundra (4WD, various trims including SR5, Limited, Platinum, TRD Off-Road, TRD Sport, 4x4)

Features

• ICON Vehicle Dynamics RXT multi-rate rear leaf spring pack engineered for enhanced off-road and on-road performance
• Three user-adjustable spring rates allow tuning for load and ride preferences
• Includes an additional add-in leaf to increase spring rate for heavier loads or fully outfitted vehicles
• Military wrapped front eyelet improves durability and strength at critical stress points
• Galvanized leaf separators reduce friction and enhance corrosion resistance
• Leaf tip inserts reduce noise and contribute to smoother ride quality
• Direct bolt-on design replaces factory rear leaf springs with no frame modifications
• Sheet steel construction tested under rigorous off-road conditions for strength and durability

Specifications

• Brand: ICON Vehicle Dynamics
• Part Number: 158509
• Position: Rear suspension leaf spring pack
• Material: High-strength steel with galvanized separators
• Maximum Lift Range: Approx. 1.75" to 4" depending on configuration selected
• Suspension Type: Multi-rate progressive leaf design
• Installation: Direct bolt-on; U-bolt kit required (sold separately)
• Warranty: ICON Vehicle Dynamics structural warranty

Included Components

• 1x ICON RXT multi-rate rear leaf spring (158509)
• 1x Add-in leaf for adjustable spring rate
• Hardware as required for spring assembly

Product Description

The ICON Vehicle Dynamics 158509 Multi-Rate RXT Leaf Spring Pack is a performance rear suspension upgrade engineered specifically for Toyota Tundra trucks from 2007 through 2021. Unlike standard single-rate leaf packs, this multi-rate design offers three selectable spring rates - giving you the flexibility to tune ride quality, load capacity, and wheel travel for your truck's setup. Whether you're building an off-road rig, loading gear for overlanding, or simply seeking better on-road compliance, this leaf spring pack adapts to your vehicle's needs.

Manufactured with tough, high-strength steel and enhanced with military-wrapped eyelets and galvanized separators, the 158509 leaf pack boosts durability and suspension travel while minimizing friction and noise under compression. An additional add-in leaf is included to increase the spring rate when carrying heavy loads or outfitted gear, helping maintain stability and control. This direct bolt-in pack requires a rear U-bolt kit for installation and works with ICON's RXT rear shocks for maximum travel improvements. Designed and tested under demanding conditions, the ICON 158509 leaf spring pack balances rugged performance with daily drivability for your Toyota Tundra.