I just did this last weekend by myself. 5 hours total (I could do it again in 3 hours)
Here are my thoughts.
Fronts - No problems
Rear - Yes the wheel carrier bolt is truly a pain in the ass. Jack up the arm 1/2 way up, wheel carrier swings in an arc - so this ensures the holes will align. Then Put the bolt in and place a screwdriver between the strut and wheel carrier - wiggle the bolt and screwdriver and push the bolt. Went in no problem.
Other side went in 3 min.
Good Luck Y'all.
Thanks to Bill webspace for the step by step.
http://billswebspace.com/M3HRSpringInstallation
Springs - Swift Spec-R
Spacers - 18MM Front 12MM Rear
