I be willing it was mis-diagnosed and its the upper strut mounting plate which when it wears out will give you clicks and poping sound especially when turning. Your lower ball joints get that bad to do that kind of noise and poping you should of been complaining about a crap load of wheel slop and your car pulling to one side or the other not all at the same time from all the front end slop. AND your tires should of been wearing out funny on the insides and when looking at the car should of looked as though the wheels/tires were not straight up and down.
If at all possible have some one turn the wheel and try to see exactly where the noise is coming from. Its more common on the taurus to have the upper strut mounting plate go bad (it sort of a bearing in a way) and when it does it like rubber on rubber when you turn and makes a nasty racket. If you can get the noise to hapen at a stand still have some one turn the wheel and open the hood. Should be coming from where the struts bolt on the top there. If you dont hear it there listen down below. But all in all they may have noticed one bad ball joint with very slight play. It really takes alot of ball joint wear to make thoes kinds of noises your talking about and at that point you would be complaing about alot more with the wear associated with the ball joint.
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Chassis / Suspension & Steering Making Noise Happens always Not applicable
Q: 1997 ford taurus sho, noise and vibration felt in steering from front end at low speeds. Seems to eminate from the struts. Also am looking for ideas about a strut brace, and any other parts that will enhance the suspension performance. I know I'll need a pro mechanic to do the work, but I'd like a pro opinion befor I take it in to a shop. Great site, glad I found it. Thanks for your time
A: Greg.... if the noise and vibration happen when turning, it's most likely the upper strut mounting plate(small bearing in there)...... An inexpensive brace across the top of the struts is easy to install and stiffens.... And GOOD quality tires are a huge improvement.... Ed
Taken from here