i replaced my balljoints (original since 97) 6-8 months after i lowered my car...now 30k km later (roughly 7 months), my driver side is acting up again...i know i have a minor neg camber problem (im lowered with neuspeed sport) but could that be the reason why my joints are going bad? i know joints are very unpredictable but im just curious as to what could aggrevate them and decrease their lifespan...i dont drive or corner very hard (rarely)...suggestions would be appreciated

edit: are balljoints basically all the same quality (rebuilt ones)?