I have upgrade my suspension to coilovers so these custom spacers I had made are available.

Since a shock/spring combination cannot be adjusted these spacers were used to lift the rear of my Avant exactly 1/4"

They come with the modified upper spring seat perch and they sit between the perch and the body of your car. With the weight of the car on top and the spring pushing down from below they don't move at all. I had them in my car for over 45,000 miles.

Price: $200 + shipping