Flatout Suspension 06-10 Jeep Commander [GR40] GR4-0610COMMANDER

DISCLAIMER: This is a made to order item. The lead time for this product is 4-8 weeks.

Flatout GR40 Coilovers – 1–3” Lift Rally-Inspired Suspension System

The Flatout GR40 Coilovers are engineered for 2006–2010 Jeep Commander drivers who want a suspension that combines daily driving comfort with true off-road and rally performance. Offering a 1–3 inch lift over stock ride height, the GR40 provides the ground clearance necessary for trails, rallycross, overland adventures, and aggressive off-road terrain, while maintaining smooth and controlled on-road handling.

Built with rally-strength durability in mind, the GR40 features inverted front shocks and external reservoir rear shocks to handle demanding conditions and extended endurance. Each coilover assembly is fully rebuildable, allowing long-term serviceability and custom tuning to match your vehicle’s load, gear, or off-road setup.

This all-in-one coilover system eliminates the need for spacer lifts or mixed spring/shock setups, delivering complete front and rear assemblies that replace your stock suspension components. Adjustable valving and high-performance linear springs ensure comfort at low speeds and precise control at higher speeds or over rough terrain.

Key Features

• 1–3” lift over stock ride height for added clearance and off-road capability

• Inverted front shocks for increased strength and stability

• External reservoir rear shocks for improved cooling and endurance

• Proprietary off-road valving with bypass pistons: soft at low speeds for comfort, firm at high speeds for control

• LPS 2.5 ID linear springs for enhanced comfort without sacrificing performance

• OEM-style top mounts for quiet operation and reduced NVH

• Electroplated shock bodies for 7–10 years of corrosion resistance

• Rebuildable design for long-term serviceability

• 1-way rebound adjustable shocks with 20 points of adjustment

• Backed by a 3-year warranty

Why Choose the Flatout GR40 Coilovers?

• Daily Driver Ready → Smooth and comfortable on pavement

• Rally Proven → Inverted front shocks and external reservoirs handle demanding off-road and rally conditions

• Complete Coilover Kit → Replaces stock suspension without the need for spacer lifts or mixed setups

• Customizable Performance → Adjustable spring rates and damping to match load, gear, or off-road build

• Durability Guaranteed → Rebuildable design, corrosion-resistant finishes, and a 3-year warranty

FITMENT

2006–2010 Jeep Commander