Originally Posted by cgalpin
No idea what they are because they were old/junk ones i got from Ren Ching's house o parts. They are rusty with no discernible markings. They were roughly the same height uncompressed but compressed one is about 13 1/4" the other about 12 1/2". I have another pair so one day when I am feeling energetic I'll play swap the springs and measure them compressed in different combinations.
12" is about stock for a 90 rear spring. If they are 90 rears, 90 fronts will drop you 2", Disco fronts will drop you 2.5". The progressive 110 fronts/Disco rears, NRC8044 would also drop you around 2" but being progressive, would cut down on the wallowing.
If they are fronts, you are SOL.