Here is a bunch of pics of cars with "C" springs.
AmericanMuscle.com - Customer Images for Ford Racing Lowering C-Springs - Coupe & Convertible (79-04 GT, V6, Mach 1; 93-98 Cobra)
Here are some with the "B" springs.
AmericanMuscle.com - Customer Images for Ford Racing Lowering B-Springs...