The fronts are torsion bars, which I think can be adusted by cranking the adjusting bolt in or out. The adjustment bolts are at the rear end of the torsion bars. I had a Dodge Dart where the hight could be adjusted at the lower control arm end. I'm not sure how much of adjustment can be made in the ride height, it might also throw the front end of allignment.
The backs are coils, which really can't be adjusted, unless you cut the springs or put in spacers.