Wheel and tire fitment: this kit will fit OEM 17", 18", and 20" wheel options, though you'll be limited to a maximum of an 11.50" (295mm) wide tire with any of the OEM F150 wheels. ReadyLift recommends a maximum backspacing of 5.5" to clear 35x12.50' tires. 37" tires can fit with minor amounts of trimming.
ReadyLift's ReadyGuard 5-Year/60,000 Mile Powertrain Warranty! If you're concerned about aggressive suspension or lift systems voiding your factory Powertrain Warranty, then ReadyLift has you and your truck covered. ReadyLift's ReadyGuard Powertrain Warranty covers your truck in case of a powertrain or driveline failure that's blamed on your professionally installed ReadyLift suspension or lift components of choice. The warranty covers your truck until it's five years old or hits 60,000 miles on its odometer, basically taking the place of your truck's factory warranty. The warranty covers ReadyLift suspension parts and lift kits that have been professionally installed, letting you mod out your truck without needing to worry about your warranty. Check out ReadyLift's ReadyGuard Warranty Packet for more information.