To remove your uppers? 3 link Maximum Motorsports setup or swap to an IRS. IRS is about $1k-$1200 for a good one plus another $1000-$1500 to freshen them up which is very important at the age they are at now. 3 link will be about $3k total.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.