3rd set of ball joints

[Fireman40]

I just got new tires today and discovered that I have a bad lower ball joint on the right side again. I swear i bought them from autozone, but they have no record on file of me buying ball joints from them. I have since my last 2 sets i have run 285/75/16 all terrain tires. And for about 8000 miles on my last set I ran 35/12.50/16. I dont know what is going wrong and why I keep having to do this. I have had it in for alingments and everything checks out ok. Maybe im using a cheap brand? What is a good brand to get witha lifetime warranty?

[DrewGerhan]

The Duralast ones from AutoZone say Duralast on the box but are made by Federal Mogul (Moog). The Duralast Gold ones a step above and those are made by Raybestos. Both have lifetime warranties.

If your phone number(s) don't come up in the warranty search, you can always try the sore number it was purchased at and your last name. Assuming it was spelled correctly when it was entered.