PartsW 10 Pc Front Suspension Kit for Ford Expedition/Tie Rod Linkages, Sway Bar End Link, Upper Control Arms, Lower Ball Joints Control Arms Come Pre-Assembled With Ball Joints & Bushings / Replacement improves handling Advanced corrosion protection against the harshest conditions / Precision-made performance and additional strength Designed with PREMIUM quality materials for exceptional performance, reliability and peace of mind Dust boot is re-installed and permanently attached to reduce contamination, and increase durability and service life Restores proper balance and Promotes longer shock life / Undergo impact, wear, and fatigue testing to help ensure quality and durability