i used belltech keys and drop shocks for the front and 2" blocks and a 3* shim in the rear and still have a humming/grinding noise that sounds like its coming from the front(at 50+mph) a shop just told me that my pass lwr ball oint is bad and both inner cv boots/joints are bad.wheels have just been balanced also.

question 1) will these keep going bad often?(only had drop 4 months and have had the noise issue since day 1)(drop is not huge)

question2)what is the best brand for these parts to go with?

question3)would any of the problems mentioned above be causing the noise?