Lower Control Arm Ball Joint Replaces for Chevy Silverado GMC Sierra Hummer H2

For 2001-2010 GMC Sierra 2500HD/3500HD. For 2001-2010 Chevrolet Silverado 2500HD/3500HD. Ball Joint Stud Material: 4140 Steel. How to install the ball joint?. Item Included : 1 x Lower Ball Joint. 1XFront Lower Ball Joint ( Mounting Hardware Included).