Flatout Suspension GR40-PRO – Extreme Off-Road Coilover Suspension

The Flatout Suspension GR40-PRO is built for drivers who push their vehicles beyond the pavement. Designed for hardcore off-roaders, overlanders, and expedition builds, this coilover suspension delivers the strength, adjustability, and endurance needed for the most demanding terrain.

Unlike spacer lifts or basic shock/spring combos, the GR40-PRO is a professional-grade coilover system featuring 3-way adjustable inverted shocks for maximum durability and tuning, external reservoirs for cooling, and advanced valving for control over rocks, washboard, sand, and mud. With 0–3” of ride height adjustment and full damping control, the GR40-PRO is the suspension upgrade for those who demand the most from their rigs.

If your weekends involve technical trails, loaded overland setups, or crawling where failure isn’t an option, the GR40-PRO is your solution.

Key Features of the GR40-PRO Coilovers

• 0–3” Adjustable Lift → Add clearance for larger tires and rougher trails.

• Inverted Shock Design → Rally-proven strength for extreme off-road abuse.

• External Reservoir Shocks → Increased oil capacity for fade-free endurance on long trail runs.

• Advanced Valving with Bypass Pistons → Smooths out washboard, absorbs big hits, and maintains control in technical conditions.

• Fully Adjustable Damping → Fine-tune rebound, high & low speed compression for heavy loads, crawling, or high-speed desert runs.

• Rebuildable Construction → Long-term serviceability for serious off-road use.

• Electroplated Shock Bodies → Corrosion resistance for 7–10 years, even in mud, snow, and salt.

Who Is the GR40-PRO For?

• Hardcore Off-Roaders → Tackle rocks, sand, mud, and rugged trails with confidence.

• Overlanders & Expedition Rigs → Perfect for vehicles carrying rooftop tents, recovery gear, or towing off-road trailers.

• Heavy-Build Drivers → Designed to handle added weight from bumpers, winches, skid plates, and cargo.

• Enthusiasts Who Want the Best → For those who don’t just lift — they demand performance suspension built to go anywhere.

Customer Benefits

• More clearance and strength for extreme terrain.

• Fade-free performance with external reservoirs.

• Handles heavy loads without sagging or instability.

• Adjustable for crawling, high-speed trails, or loaded overlanding.

• Premium durability for long-term off-road adventures.

SPRINGS WILL NEED TO BE INSTALLED FOR INSTALLATION