Important Notes

• 38 x 12.5 with 16 x 10 and 4 in. Backspace
• These truck 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.
• If your vehicle is equipped with a carrier bearing, you will want the 123402 drop kit in the options section.
• The front driveshaft will need to be lengthened and/or clearance ground depending on how the vehicle is equipped.
• California Residents: PROP 65 WARNING: Cancer and Reproductive Harm