You could buy fox body springs like I did. ( 86 GT v-8 ) Then proceed to cut, install , remove ,cut ,reinstall. The springs are fairly inexpensive from autozone or advance. 1 wrap, or coil equals about 1 inch. But a word of caution, after the first wrap comes off, reduce cutting to half a coil and then a quarter till you get it where you like it. These springs have a better rate than the mustangII springs, they do not bounce like the ii's and will over all give a better ride.