(Google) Search out for a Whiteline Suspension agent in your neck of the world (perhaps Josh McCain - 185 Performance) and check out Whiteline's cattle-dog, they list a few components for the TA22, TA23 and RA23/28 Celica.I have their adjustable panhard rod in the back of my RA23 and am soon to get a adj. front sway bar from them as well.
Cheers,
Mitch.