I have
2WD, and it was a bit confusing. I had a video I found on Youtube to guide me but my original ball joints rusted themselves on to the hub (Is that the right name?), so I spent about an hour wacking it with a hammer and that did NOTHING, so my frient recommended BP Blaster and then I hit with a mini sledge and it popped right off. The Ball Joint Press is necessary!!! you cant do this job without one. but it took about an hour, both sides. HUGE difference when you ride it after, has that brand new TANK feel. Remember Alignment is a must after you finish the job. Upper ball joints have the integrated control arm. The lower ball joints come by themselves. Both Firestone and Sears wanted 1000 bucks. I spent 250 bucks on parts and the gallon of BP Blaster.... plus the 170 bucks for the rental tool, which is refunded when you bring the tool back.
if your gonna do it the drive way better do some research. Youtube has a great video if you look up "Ball joint replacement 2003 Ford, however theres a better chance you wont totally blow your alignment if you replace the Control arm first then the lowers second. That allows the lower ball joint to keep everything in place.
I didnt need the Pickle Fork because BP Blaster took care of it all...