Upper Ball Joints
 

I just want to share my frustration with companies not providing quality parts.
I recently added McGaughy drop spindles and figured I'd replace the ball joints while I was in there.

First thing you should do is check the ball joint fitment BEFORE you install any of them on your truck! Luckily the lowers fit like they were supposed to (Moog). The uppers on the other hand did not. Put them in and the castle nut would not thread on even remotely far enough for the cotter pin hole to be seen. After three auto parts stores telling me they were out of stock and had to order (by the way, it'll take two days to get here), I went to NAPA at noon and they had their brand ordered and in the store by 4:30. Went back and picked them up and they fit perfect.

Don't buy junk (Master Pro), if you have to, save your money and wait a little bit for the more expensive ones...it will be much better for you in the long run.