Moog...worth the hassle/$$
Upper ball joints were shot on the Explorer. Wanted Moog...Motion Auto sells their parts....at double what Rock Auto gets for them. Ordered them on a Monday from Rock Auto, had them by Friday. Despite being Moog the box says made in China...
Boots on the upper ball joints of my truck have been ripped for several years now. I pump some fresh grease in them once a month or so. Just checked the ball joints this morning, surprisingly they are still tight. Getting tired of the grease routine so I may just replace the upper control arms. I can get both uppers from my buddy at NAPA (that is what is in my truck now) for what Rock Auto wants for one.