This replacement bushing kit is designed for the BDS radius arms for 2005-2025 Ford F250/F350 Super Duty, 2014-2026 Ram 2500, and 2013-2024 Ram 3500 4WD trucks. These large 3-1/4" rubber bushings to minimize road vibrations while allowing for long, maintenance-free bushing life. Kit includes 1 bushing assembly for quick and easy installation. Fits lift kits with component boxes 123251 and 122321.