front end tips for a 1984 300-d ??
 

i have a 1984 300-d i plan to look at the front end in a couple weeks i like to know what im getting myself into.
first as i mentioned in a previous thread the front end feels light
, plus i noticed the left front tire is wearing badly on the outside.
i need to know :
how do i change the lower ball-joints (if needed)
how do i repair or replace the upper control arms
how do i adjust the steering box

thanks