If you're hearing a rattling noise, it's likely the sway bar end links. That is a common issue on these cars. It is also a pretty easy job.
If somehow it was the control arm bushings, be careful with that job since they hold the tension of the spring. It is a big job. So big, that my mechanic removed extra parts when swapping my springs just so he didn't have to touch those bushings. Probably didn't want to ruin them. That's another thing: they could get ruined anyway during the R&R.
97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles