First time poster here - really glad to find the site! Went in for an oil change for our 2006 GT convertible and was told we needed both lower ball joints and lower control arms - about an $800 'fix'. Really sicks because the car only has 30,000 miles on it - and I'm not really sure what we need to do the job right. Really do not want to do this every 30,000 miles. Some people have suggested replacing stock parts with the GT500 stuff, and others say the Ford parts are still junk - go to an aftermarket replacement. Any and all help is greatly appreciated!