QSA 2" / 3" Adjustable Rear Lowering Drop Shackles (w/OEM Style No-Squeak Bushings) Compatible with 2004-2014 Ford F-150 Includes 1 set of 2" / 3" Adjustable Lowering Shackles (L+R) Shackles come with Ultra High Quality (OEM Style) Rubber Encased SILENT Bushings. These Bushings Do NOT Squeak and Don't Require Greasing. Heavy Duty Black Powder Coating Gives Excellent Appearance and Protection from Rust! Fits 2004 - 2014 Ford F-150 Do Not Buy Shackles with Cheap Bushings or ones that require Greasing. These only cause more work for you and they end up squeaking anyways. Go with the only true solution. OEM style Rubber Encased Bushings will give you the quality you need in a bushing.