Vehicles equipped with a 2-piece rear drivehaft may require carrier bearing drop kit ZONF5401. Although rare, if your vehicle has both a stock 4" rear block and a top mounted overload spring, ZONU4035 u-bolts may be required.
The Zone Offroad 6" radius arm suspension lift for the Ford F250, F350 Super Duty features bullet proof radius arms that provide more ground clearance, better looks, and a big strength improvement over the stockers. American made, diesel specific coil springs will not sag to provide you a ride you might not expect from a system this price competitive. This system includes a dropped pitman arm and track bar relocation bracket, sway bar brackets, front bump stop spacers, brake line relocation brackets, steering stabilizer relocation brackets, rear 5" blocks with integrated bump stops and add-a-leaf combination. Removal of the factory block is required. Net rear height gain will vary based on size of the factory block, but will result in a level stance.This block & AAL system will reduce spring wrap, level the truck, and is also designed to shift the axle forward to ensure the tire stays centered in the rear wheel well. Although extremely rare, front drive line vibration may occur. Front exhaust modification may be required to clear the front driveshaft on gas models.