Swapping out your gears doesn't have to be a hassle, especially when you've got our expansive selection of complete gear packages right here at Stage 3! These kits combine front and rear gear sets and bearing kits for a near-complete differential overhaul that improves reliability and gets you the differential performance you're looking for. Ford Super Duty Fitments: 2004, 2005, 2006, 2007 Ford F250 & F350 6.0L Submodel Fitments: FX4, King Ranch, Platinum, Lariat, XLT, XL Some Exceptions apply, please see individual product pages for specific fitments.