PartsW 13 Piece Suspension Kit For Cadillac Chevrolet GMC Upper Control Arms and Ball Joints Assembly Sway Bars & Idler Arms Inner & Outer Tie Rod Ends Lower Ball Joints, Pitman Arm with 4 Grooves Control Arms Come Pre-Assembled With Ball Joints & Bushings 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 Premium alloy steel stud for strength and durability / Replacement improves handling Dust boot is re-installed and permanently attached to reduce contamination, and increase durability and service life