This is a kit for a 2004-2008 Ford F-150 or Lincoln Mark LT, including front upper control arm and ball joint assemblies. Made of alloy steel with a coated finish, it is greasable and has a bolt-on mounting style. It comes with mounting hardware and has a 10-year manufacturer warranty. Suitable for 2WD and 4WD vehicles, it can be installed on the left or right side of the front.