The ICON Vehicle Dynamics 1999-2007 Ford F-250/F-350 Super Duty 6 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 ICONs Limited Lifetime Warranty.Additional Attributes:GTIN:00840103400174Universal Or Specific Fit:SpecificGrade Type:PerformancePlate Color:BlackPlate Material:SteelAAP_UDA_12:EAAAP_UDA_22:1AAP_UDA_4:55California Proposition 65:WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.U-Bolts Included:NOExtended Information:Emissions :Emissions Compliance ExemptLife Cycle Status:Available To OrderPackaging:Quantity of Each:1.0Package UOM:EADimension:11.0000 x 5.0000 x 8.0000 inchesWeight:26.0000 PG