1) Remove toe kick panel - 2 Philips head screws
2) Lay down on floor. This might be the hardest part of the repair from some people!
3) Remove broken spring, no tool required.
4) Using your fingers, slip one end of new spring into hole on lever arm. (If you're not sure how it should go, look at the spring on the other door, assuming you have a side-by-side.)
5) Hook the other end of the spring around a round-shank screwdriver. (Don't even bother with pliers. You will disregard this advice and use pliers anyway, then after they slip off several times, use the screwdriver method.)
6) Place the tip of the screwdriver on the post which will receive the spring hook, with the open end of the hook facing the post. (If the open end of the hook is not facing the post, flip the spring over in the lever arm hole.)
7) Slowly pry the screwdriver so that the spring slides toward the post. It will catch on the post and almost magically seat itself.
8) Operate door to ensure the spring is properly seated.
9) Re-install toe kick.
Notes: Keep unprotected fingers away from the spring when under tension. If the spring slips, the hooked end could easily tear a nasty hole in your fingers.