Important Notes

• These trucks were manufactured with two different style front u-bolts. You will need to know if your front leaf spring u-bolts are square or are half way between round and square with a gentle radius around the OE cast u-bolt plate before ordering.
• Vehicles produced before 3/1/99 require a different box kit. You must check the production date on the door prior to ordering.
• The Superduty came from the factory with a 2", 3", or 4" rear block. If you wish to truly level your vehicle it may be necessary to change the rear OE block.
• Will not fit dually applications.
• These trucks were produced both with and without a top mounted over load spring. There is an extra leaf that mounts on top of the rear leaf pack. You will need to know how your truck is equipped before ordering.
• If your vehicle is equipped with a carrier bearing, you will want the 123402 drop kit in the accessories section.
• 35 x 12.5 with 16 x 8 and 4 in. Backspace
• California Residents: PROP 65 WARNING: Cancer and Reproductive Harm