QSA 1"/ 2" Rear Lowering Drop Shackles SET 2WD RB Bushings. Compatible with 1973-1996 Ford F150 2WD ONLY See Description Below for applications (1973 - 1996 Ford F100 / F150 Models 2WD only) Includes: 1 set of 1" or 2" Adjustable DROP Shackles (L + R) Shackles come with Ultra High Quality (OEM Style) Rubber Encased SILENT Bushings. These Bushings DO NOT Squeak and Dont Require Greasing Heavy Duty Black Powder Coating Gives Excellent Appearance and Protection from Rust! Shackles have RB-Style (Silent) bushings