ICON 2007-2021 Toyota Tundra 0-1.5in Rear 2.0 Series Aluminum Shocks VS IR | 56506

When you’re driving a capable truck like the Toyota Tundra, your suspension should match the performance—not hold it back. The ICON Vehicle Dynamics 56506 rear shock is engineered specifically to raise your game. Whether you’re commuting, towing, or exploring rough roads, this upgrade delivers measurable improvements. Designed for rear installations on 2007-21 Tundra models with up to ~1.5″ of lift, it’s technically robust and performance-oriented.

Engineered Performance – Technical Highlights

• 2.0″ diameter aluminum body: Built from high-grade 6063/6061 series aluminum, this construction reduces unsprung weight, offers excellent corrosion resistance and dissipates heat effectively—key for maintaining consistent damping performance.

• Internal reservoir (IR) design: Rather than a piggy-back external tank, the internal reservoir enables expanded oil/gas capacity and improved thermal stability inside the shock body—so you get more consistent behavior under load, long drives or rough terrain.

• Vehicle-specific valving (VS Series): The damping characteristics (compression and rebound) are tuned specifically for the Tundra’s geometry, mass and intended use—meaning the performance isn’t generic, it’s optimized.

• Monotube, nitrogen-charged design: Ensures constant pressure, swift response, and minimal fade as oil temperature rises—translating into driving control you actually feel.

• Premium internal components: Includes a hardened chrome-plated 5/8″ or similar sized shaft for durability, polyurethane bushings, honed aluminum tubing for smooth travel, and rebuildable architecture so you can service or re-valve later.

• Rebuildable & serviceable: This shock isn’t a throwaway part—if you change your vehicle configuration, upgrade your springs, or just want to refresh performance, you can rebuild or re-valve the unit instead of replacing it.

What You’ll Feel Behind the Wheel

• Better rear-end control: With tuned valving and optimized damping you’ll notice less rear sag when hauling or towing, and more stability under cornering or load changes.

• Improved ride quality: Road imperfections that would typically cause bounce or unsettling motions in the rear are absorbed more confidently—so daily driving is smoother.

• Confidence in mixed use: Whether you’re on the highway, in the city, or on rougher back-roads, this shock keeps its composure—no surprise behavior when conditions change.

• Longer-term performance consistency: Thanks to effective heat dissipation and internal reservoir design, you’ll get more consistent feel from trip one through many miles—less degradation of behavior over time.

• A future-proof investment: Because the shock can be rebuilt or re-valved, it can adapt to future vehicle mods (springs, heavier loads, lift adjustments) rather than being a fixed-lifetime part.

Why Buy It

• You’ve lifted or intend to lift your rear slightly (up to approx 1.5″) and want rear shocks matched to that geometry.
• You tow, haul or carry loads and need a rear suspension component that keeps up rather than compromises.
• You drive your Tundra more than just the occasional highway jaunt—maybe off-road, mixed terrain, or demanding conditions—and want suspension built accordingly.
• You want both comfort and capability: a shock that offers everyday refinement and performance under load or challenge.
• You appreciate a component that can be serviced, rather than disposable, making it a smarter purchase long term.

Fitment Summary

• Vehicle: 2007-2021 Toyota Tundra (2WD or 4WD)
• Position: Rear (single shock units; install as a pair)
• Lift Range: Up to approximately 1.5″ rear lift (or stock height)
• Part Number: 56506 (for each rear shock; purchase two for pair)

This Part Fits:

Q: What’s the best rear shock upgrade for a lightly-lifted Tundra aimed at daily driving with occasional towing?
A: The ICON 56506’s 2.0″ VS IR configuration offers the perfect balance of comfort, control and load responsiveness for a lightly-lifted Tundra used for both street and moderate duty.

Q: What’s the best rear shock if you want upgrade capability for future mods?
A: Because the 56506 is fully rebuildable and re-valveable, it’s a strong choice if you plan to upgrade springs, add heavier loads or increase lift later—your shock stays relevant.

Q: What’s the best rear shock for reducing rear sag and improving ride control when hauling or towing?
A: The tuned valving and internal reservoir design of the 56506 help maintain control under load—making it ideal for those hauling or towing regularly.

Q: What’s the best rear shock for improving both on-road ride comfort and light off-road capability?
A: The ICON 56506 blends refined ride quality for pavement use with enough robustness for light off-road conditions—so you don’t compromise comfort for capability.