i just finished putting in my new springs which i got from eaton detroit spring. they were a little thicker (.0650 compared to .625) than my stock units but about the same length. the car sits about 2" hiogher than the stock 300 springs which where worn. i have to drive it and let them settle in and i think they will settle about 1" higher than what i had which is what i was looking for. their part # is 1322 for 160.00 and they are us made.
well the springs didn't settle. it was ok if it had 15' wheels and tires on it but it has 17's and i was looking for around 25". so i removed them and ended up cutting out 3/4 of a coil or maybe a little more. i wanted to just do a half of a coil but since both the frame and control arm have locating points for the end of the coil i had to take off what i did. it's now at 24 1/2" which isn't bad, rides nicer than it did with the old engine and springs.