Hey all, i'm about to pick up some used ground control coilovers. the fronts are still mounted to some motorcraft shocks. I ran the parts number on the shocks and they were off of a 2000-2004 zx3, so i know these will work on my 2005 zx4 ST. i won't be using these motorcrafts or my stock shocks and struts. I haven't really decided what i'll be going with yet if i do end up picking these up. i was just hoping maybe one of you can help me out with the part# and other markings on the springs. Both the front and rear springs have the #36419 and 0600.250.0450 on them. shouldn't the front and rear have different markings to indicate different springs rates and what not? thanks for the help guys. maybe someone with similar ground controls can look at their markings.