I've ordered with Rock Auto before... no real causes for concerns. However, after ordering this last part and it did not come in (was 2 days past due), I put in for a lost package. They said, "We shipped it, be patient." The next day, I ordered the same part from Amazon. Amazon delivered the part on time three days later (the same day that Rock Auto was giving for the "new" expected arrival date). I put the part on my car. Four days later, the part from Rock Auto still remains undelivered. And, there is no way to get a refund after you tell them you want your money back because the part is late. RockAuto, you had your chance and blew it.