First up is the steering link build up. Notice the shiney side of the  rod end on the top one. (The lower one is displaying the matte finish  and is the wrong side to pop from) This is the side you will want to pop  the ball into. it will yeild the best / smoothest swivel action.
 
I use a a flat tooth set of needle nose to pop all of the ball in to the  rod ends. This flat jaw style will not marr the aluminum or steel ball.  Do this to both rod ends
 
Now with your 5/64 allen screw the threaded link into the rod end until it just starts to bottom out.
 
For the other side I will start the end in by hand and then insert the  5/64 allen into the ball to thread the rod on the rest of the way.  (extreme force on the end with your fingers will eventually wear you out  so I like to do things the easiet way 

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