ok well ever since i got my lude up and running i have noticed when i go over railroad tracks or hit a pothole i get a clunk/squeak noise. well when me and the girlfriend went to town i stopped at the atm, after i got done i pulled into a parking spot. i got out and grabbed ahold of the passenger front tire at the top and began to pull towards me, the tire had about 1/2 inch of movement in and out. so i know the balljoint is bad for sure and i got a parts car so thats no big deal, what is kinda a big deal is about a month ago i spent about $70 to get it aligned. how do i go about changing the upper control arm and not throwing the alignment out when installing the new one?