2 yellow is basically a standard length spring (heavy duty to be exact)
appart from the basic stripes there are mixed , i presume this is because they are on middle ground when tesed/ set and painted when new
lower would be one green.
no probs fitting,
you can fit single springs but they are set in pairs so best to fit the pair
http://www.brick-yard.co.uk/VehicleSpec ... prings.htm" onclick="window.open(this.href);return false;