while changing out the lower ball
joints on both sides i noticed that
the bushing in the picture(#4) were wearing out bad.
does anyone know if the Daizen Front Control Arm Bushing Set will replace that bushing
in the pic? or can i just buy that part at the dealership or
do i have to buy the whole upper control arm?

 

the daizen bushing kit does not cover that because that rubber part is a rubber boot to keep the grease inside the upper ball joint. It's not a bushing. In order to replace that part, you're going to have to get a new control arm, or find a used set at a junkyard and pull the rubber boot out.