ICON 4.5-Inch Stage 1 Suspension System with Radius Arm Drop Kit for 2023 Ford F-250/F-350 4WD

CNC-machined from T6 billet aluminum, this complete 4.5-inch stage 1 platform pairs progressive-rate coilover reservoir shocks with geometry-correcting drop radius arms to eliminate bump steer, restore factory ride manners, and safely clear oversized off-road tires.

• Precision-Corrected Tracking: CNC-milled lower radius arms and reinforced track bar brackets realign caster and camber angles, neutralizing steering kickback and axle shift that derail standard aftermarket lifts.
• Tuned Nitrogen Damping: Reservoir-style monotube shocks provide adjustable compression and rebound calibration to absorb washboard highways, washboard ruts, and heavy impact loads without wallow or bottoming.
• Heavy-Duty Pivot Architecture: Swaps worn-out factory rubber bushings for sealed spherical rod ends and zinc-nickel fastened chromoly linkages, preventing alignment drift and metal fatigue across decades of cycle loading.
• Industrial Corrosion Barriers: Sandblasted and epoxy powder-coated finishes protect every crossmember, pivot point, and mounting flange from road salt, alkaline soil, and prolonged moisture exposure.
• Confident Tire Footprint: The calculated 4.5-inch lift index delivers immediate clearance for 35x12.50-inch all-terrains without body modification, plus room to roll 37-inch profiles using minor fender trimming.
• Load-Balancing Spring Tunes: Manufacturer-rated coil springs match documented curb weights and optional camper shells, eliminating the nose-heavy stance and uneven droop characteristic of generic spacer kits.
• Verified Platform Fitment: Direct-replacement geometry engineered exclusively for 2023 and newer 4WD Ford F-250/F-350 gas models with crew cab chassis, guaranteeing precise OEM sensor clearance and zero wiring interference.