QSA 1" / 2" Adjustable Rear Lowering Drop Shackles Compatible with 1999-2007 Chevy Silverado 1500 / GMC Sierra 1500 2WD / 4WD WARNING: THERE ARE OTHER SELLERS SELLING THEIR PRODUCT UNDER OUR LISTING. WE DO NOT SELL THESE TO ANYONE AND ONLY SELL OURSELF ONLINE. YOU WILL MOST LIKELY GET A GARBAGE SET OF SHACKLES WITH CRUMBY BUSHING. BUY ONLY FROM QUALITY SUSPENSION ADVANTAGE TO ASSURE YOU ARE GETTING THE RIGHT PART. SIncludes 1 set of 1" / 2" 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 1988 - 2018 Chevrolet Silverado 1500, 1988 - 2018 GMC Sierra 1500, 1994 - 2001 Dodge Ram, 1997 - 2003 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.