A few notes for anybody else working on these trucks. Do not install the upper ball joint/arm again until you have taken the lower one off, and put the new lower one in.. There isn't enough room to clear the threads at the bottom of the bottom ball joint unless the upper one is not connected. It may be only in OEM situations, the newer ball joint has shorter threads and a castle nut, what is in the truck now has a longer shaft and locking threads. And yes, even though there is a nice snap ring, the bottom ball joint is still a press off situation and it will not just come out nicely. Tomorrow I find the press tool to get the bottom ball joint out of the bottom arm.