PartsW 2 Pc New Suspension Kit for Cadillac GMC Chevrolet/Escalade, K1500, K2500, K3500, K1500 Suburban, K2500 Suburban, Tahoe, Yukon/Front Lower Ball Joints Undergo impact, wear, and fatigue testing to help ensure quality and durability 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 Premium alloy steel stud for strength and durability / Replacement improves handling