I can't speak about the progressives, but I've got 86 GT springs on the front of my 88.
I cut them 1.25 coils, if I remember correctly.
Sorry. Don't have a better pic. I'm running 215/45-17s in the front.
Edit - I would be inclined to install them, as-is, before cutting them, just to see how they work out.
[This message has been edited by Raydar (edited 01-20-2015).]