[JLMounce]

Spring free height isn't a solid indicator of compressed height or "ride height," unless the springs going in the car are exactly the same spring rate as the springs coming out of the car.

The factory springs in these cars don't have a lot of rate in them and so they need to be taller because they will compress further. I can tell you just by looking at the pictures, that the new spring has a good bit more spring rate in it. Without knowing what the spring rate of the stock equipment is and the spring rate of the new spring, it's impossible to say if you'll achieve a similar ride height to what you have currently, or if you'll see a lowered ride height.

I'm assuming you purchased part S364. It's labeled as a stock height spring. I would bet you're going to be pretty close in ride height, you may see a small drop or a small increase in height depending on the condition of the spring and if it's lost any of it's rate over the years.