The ICON Vehicle Dynamics 1999-2024 Ford F-250/F-350 Super Duty 4” Rear Block Kit features a square, non-tapered block design to provide easy rear lift to a Ford Super Duty pickup. These heavy-duty blocks are fabricated from CNC laser cut and brake-formed steel plate and heavy duty .250” wall square tubing to endure the stresses of heavy towing/hauling duty as well as aggressive off-road use. Their reinforced bump stop tang provides proper bump stop engagement and limits compression travel to prevent damage to the rear shocks and shock mounts at full bottom out. These blocks look as good as they perform with a semi-gloss black powder coat finish and are backed by ICON’s Limited Lifetime Warranty.Suspension Leaf Spring Block KitSpecifications: AAP_UDA_12 EA AAP_UDA_22 1 AAP_UDA_4 55 Add-On Part 37003 - 99-10 FSD REAR 15" U-BOLT KIT Add-On Part 67003 - 11-24 FSD REAR 15" U-BOLT KIT California Prop 65 Warning Yes California Proposition 65 WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. 3390 Performance 3984 Black 840 Steel Title ICON 1999-2024 Ford F-250/F-350 Super Duty, 4" Rear Block Kit U-Bolts Included NO 3145 Specific Description_TLE ICON 1999-2024 Ford F-250/F-350 Super Duty, 4" Rear Block Kit Description_APS ICON 99-24 FSD 4" BLOCK KIT Description_DEF Suspension Leaf Spring Block Kit Description_SHO FSD 4" BLOCKS Description_INV 194275 Description_ASC TECH NOTE: Depending on year and leaf spring configuration installer must use the appropriate U-bolts (not included in kit) Description_ASC TECH NOTE: Will not fit 2023-2024 F-350 with dual rear wheels Description_DES 99-24 FSD 4" BLOCK KIT Description_EXT The ICON Super Duty 4” Rear Block Kit features a square block design fabricated from CNC laser cut and brake-formed steel plate and heavy duty square tubing to endure the stresses of heavy towing/hauling as well as aggressive off-road use. Description_MKT The ICON Vehicle Dynamics 1999-2024 Ford F-250/F-350 Super Duty 4” Rear Block Kit features a square, non-tapered block design to provide easy rear lift to a Ford Super Duty pickup. These heavy-duty blocks are fabricated from CNC laser cut and brake-formed steel plate and heavy duty .250” wall square tubing to endure the stresses of heavy towing/hauling duty as well as aggressive off-road use. Their reinforced bump stop tang provides proper bump stop engagement and limits compression travel to prevent damage to the rear shocks and shock mounts at full bottom out. These blocks look as good as they perform with a semi-gloss black powder coat finish and are backed by ICON’s Limited Lifetime Warranty. Description_FAB Vehicle specific, square block design with 4” overall height Description_FAB Fabricated from CNC laser cut and brake-formed steel plate and heavy-duty .250” wall square tubing Description_FAB Heavy-duty bump stop tang provides proper bump stop engagement Description_FAB Semi-gloss black powder coat finish for corrosion resistance Description_FAB ICON Limited Lifetime Warranty
