I've had two poor experiences with Rock Auto and like the OP, discovered that there was absolutely ZERO way to communicate with them, and have never purchased from them again. I have had good luck with FordPartsGiant, even with heavier suspension parts. I have also had good luck with MOOG parts from independent parts dealers. Clearly, as with the OP, YMMV. Also, look into Heller Ford, El Paso, IL and Apple Ford in Apple Valley, MN; stellar transactions with both, and you get to talk to a live human being.