I am interedted in these springs for my Mach 1. I am looking to drop 1" to 1.25" all around (It can be raked in the front a little). These springs appear to be close to the stock Mach 1 spring rate, which is great for me. I don't want to upgrade the shocks/struts yet as I only have 57k miles. How do you like these springs compared to stock? How much did it drop you Mach 1? Did you re-use the stock ISO's? Thanks.
I ran these on my 03 Mach with the factory Tokico shocks/struts and was very happy with them. The drop is less drastic as your car already sits lower than a GT would, but there is still a nice drop achieved with them. My stock isolators were still in good shape so I reused them. Once the springs settle, you should see about 3/4'' drop over the factory springs.