Ball Joint problems of the 2008 Dodge Dakota

I was driving home on highway and heard a pop like sound found out in morning the pinion was the issue and neighbor found nut was lose and I got another and he is a mechanic so he installed it and a week later was making noise so I took it to a garage and they found it lose and installed another one and just the other day I took it back and found it was lose some so he ordered another one and he put some retainer or not sure but he will put the new nut on when it comes in and I see 44,000 trucks from 2009 to 2010 and trucks from 2005 have pinion problems so I am amazed that 2008 has same issue and I see so many post ball joints I did one side already and for god to and now air bag I see and had fords and chevy and all I repaired on the were normal things.

Tie rods failed under 25k miles loss of control violent shaking 26 thousand miles water pump bearings failed leaking seal possible belt slippage from leak repair shop also noticed rack n pinion seals leaking fluid that was replaced now I hear a clunking when I turn. Ball joints?? that you cannot lubricate they were replaced for free on my 2002 Dakota for my ownership free they should be free for this one too before it kills someone.