You've selected a GM 10 BOLT knuckle (not D44) with ball joints, spindle studs, and nuts installed.  You will be receiving Parts Mike's proprietary hardcore ball joints.  See the exploded view for circled items in red #41, #32-39 #53).  Check out our steering arm packages to complete the set up, and call us if you have ANY questions!  We're steering experts, there's a lot of gotchas, and it's easier to solve a problem before it happens then figure out how to fix a failed attempt AND the original problem. 

This is for a right side (passenger's) knuckle.  It was designed for GM 10 Bolt.  If you don't know the difference, the D44 tie rod goes over the knuckle arm, and a 10B has a tie rod that goes under the knuckle arms.