Anybody do this on your own? Any special tools needed, other than a really heavy duty press? My 97 4x4 F150 just got a new set of tires put on her but they would not align it because both lower ball joints were iffy. The tops were good on both sides but the lowers need it and I'm wondering what I am in for. Oh yeah, I did ask what it would be just for Big O to do it then and there - over $500 so I said, uh yeah, let me research this first!