I have a set of Mustang GT (1987 - 1993) sway bars for sale They will also fit other Foxbody vehicles of that era (Thunderbird, Cougar, Fairmont / Zephyr and Mercury Capri). The front bar is 1.312" diameter, the rear is .75". I cleaned them up and put a coat of black paint on them. They are ready to install.
I have a second 1.312" front sway bar (front only) with mounting brackets and bushings installed - $65.