The factory installed upper control arms on my Honda Civic 1999 are quite old and its time to do a proactive replacement.
The preparatory work is:
1. Engage Handbrake, Chock rear wheels, Raise the car and remove the tire.
2. Support the side lifted with a safety stand (no need to lift the car high).
3. Spray all involved bolts with penetrating oil and allow to soak for a couple minutes.
Step 1: Loosen the Flange Bolts and Remove the Ball Joint Nut.
The 14mm flange bolts are accessed in the engine bay, at the damper's tower. I loosened both bolts but didn't remove them as yet.
Step 2: Removing the Old Arm.
Step 3: Comparing the Old and New.
Step 4: Installing the New.
Each side took half hour.
Now the car handles way better and I'm happy for this affordable job.