RockTrix Front Leveling Kit | 2.8" Lift | Carbon Steel Leaf Spring Mini Plates Blocks & U Bolts - for 1999-2004 Ford F250 F350 Super Duty Excursion 4x4 (March 1999+ Production) Authentic RockTrix Leveling Kit. Settle For Nothing Less. [CONTENTS] (2) High-Grade Carbon Steel Leaf Packs. (4) Extended U-Bolts. Hardware (Nuts/Washers/Bolts) as shown in pictures. [U BOLT INFORMATION] Square Bend / Shape | Length: 12" | Width: 3.15" (Inner Diameter) | Threading: M14x1.5 [LEAF PACKS] Made to precise specifications for guaranteed fit and lift height. Undergo an electrophoretic coating process to offer quality appearance and superior rust prevention. Factory shocks & pan-arm bar WILL work with this kit. Mounting up 35  37 tires will be a breeze <span class="a-text-bold">Lift Height</span>: 2.8 inches <span class="a-text-bold">Plate Material</span>: Steel <span class="a-text-bold">Coating</span>: Electrophoretic <span class="a-text-bold">Hardware Grade</span>: 8 <span class="a-text-bold">U-Bolt Bend Shape</span>: Square <span class="a-text-bold">U-Bolt Length</span>: 12&#034; <span class="a-text-bold">U-Bolt Width</span>: 3.15&#034; <span class="a-text-bold">U-Bolt Threading</span>: M14x1.5 Designed with an effortless install process in mind. Install will take approximately 2 to 3 hours with common hand tools. No cutting, welding, or any other form of modification required. Factory shocks &amp; pan-arm bar WILL work with this kit. Accommodates up to 35&#034; - 37&#034; tires. <span class="a-text-bold">U-BOLT SHAPE</span>:  These are square-shaped ubolts. It is NECESSARY to check your current u-bolt shape to confirm it matches. <span class="a-text-bold">SAFETY / INSTALL WARNING</span>: Installation should only be performed by a trained professional. <span class="a-text-bold">LIFT HEIGHT</span>:<span class="a-text-bold"> </span>The lift specified above is only applicable if you have not added / changed other suspension components. <span class="a-text-bold">ALIGNMENT</span>: It is necessary to get an alignment after the installation of this item to achieve the full lift height. <span class="a-text-bold">FITMENT</span>: Use the Applications listed above. If your vehicle is not on the list, message us so we can help find the correct item.