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The ICON 4" rear block kit for 1999–2025 Ford F-250/F-350 Super Duty pickups uses a square, non-tapered block design fabricated from CNC laser-cut and brake-formed steel and heavy .250" wall tubing to withstand towing, hauling, and off-road stresses. A reinforced bump-stop tang controls compression travel, and a semi-gloss black powder coat provides corrosion resistance backed by ICON’s Limited Lifetime Warranty.
ICON 1999+ Ford F-250/F-350 4in Block Kit
