upper ball joints preference

XRF deals typically only jobber with service garages. Not retail, and that is why most people have never heard of them. Service garages do not want repeat customers for a failed replacement part. This costs them money and their reputation. Moog has cheapened their product line.

Unless the pieces you get are vintage Moog and are made in USA your taking a gamble. I found a jobber willing to sell these parts to anybody, not just service garages. Prices for XRF parts at jobber are about the same as moog retail prices, so it's a non issue if your buying them from a jobber warehouse. Plus XRF offers a 1 million mile warranty. A vehicle using their off the shelf joints won the BAJA 1000 five years in a row according to their website. That's a very punishing race for any equipment let alone a stock off the shelf ball joint.

I picked up an XRF pitman arm i think it was for my sons 69 notch on rockauto closeout. Payed $9 for it LOL. I bet nobody even knew what it was. Its stored away with all new XRF front end parts for his car when we redo the front end.