Only if there is play in them, or they are OEM. Make sure they are greasable, or quality ball joints at least If you can afford it. They arent a maint item, just because of mileage.
Odhinn got a quote on his at a shop for $765 a side, do it your self $150-$200 a side, not including tools. Make sure you grab a press from auto zone. You can buy one for $99.99 there or rent it from there for same price and return it and they will refund the full price.
are you sure it wasn't user error rubi . I like napa around my area, I replaced the ball joints in my dodge p/u when I had it, never had a problem with the parts or service, of course that is what happens when you know what your doing . J/K
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