I got my convertible on the road this fall and it's apparent I need new leaf springs. I hoped I could use the originals but I have a broken leaf on one side and both sides sag badly, especially with a full tank of gas. Rebuilding is an option but replacements are probably cheaper. I'm confused by the many variants available, so many options at so many price points -- all I want is the factory equivalent leaf spring for an F-code convertible. Factory ride, height etc. What should I be looking for? Thanks!