<center><img src="http://pictureposter.audiworld.com/84342/spring2.jpg"></center><p>i'm sure you can't fully tell by looks. and i'm sure the rears are naturally progressive. but the fronts don't looks to be (which i'd be happy with). at least they don't look like other progressive springs with the closer coils in places. thoughts?

The rears in fact look to be a taper wire coil. The wire diamater is not consistant, which makes it at least a multiple rate spring, and a reasonably expensive spring to manufacture.

The fronts appear to at least have a dead coil, making them probably a dual rate spring.