Product review (5 stars): Good parts cured the "Unbalance" problem - about 90 minutes to install for one person
Im giving the parts 5 stars because it cured my Unbalanced problem with the Whirlpool Cabrio washer that I have.

I don't know about the others but it took me about an hour and a half to remove and install the 4 suspension rods  don't kid yourself, this is really a 2 man job but you can manage with a few tools. You will need a long flat head screwdriver (about 12 in length), a vise-grip and a flashlight. In my case, I couldn't get my arms down into the little space and was not able to pull the tub upwards  if you have a stainless steel tub (that is what I had), it will be heavier than a plastic one. If you have a second person, that person can push the tub to the other extreme and / or lift so that the rod hook comes out easier. I didn't have a second person to help so this is what I recommend.

The easiest rod to lift (if you are facing the washer), is the one on the left back  that has the most space for your arm  so this is the one I changed the first. Keep in mind the first one is the toughest  one, there is a learning curve and two, you do not have any convenient way to pull the rod out (as pointed out by other reviewers, for the second, third and fourth, you can use one of the old rods as a fish hook to pull the new rod through the anchoring hole). This is where the vise-grips come in handy  I used the vise-grip to pull the rod up and with a combination of the screw-driver and vise-grip was able to wrestle the plastic suspension ball away from the first rod hook. My Whirlpool Cabrio washer was the older model that did not have a plastic bushing  instead it had grease that I had to wipe away. Removing the old rod from the bottom busing is also a struggle  this is where the long screw-driver comes in handy  I just pushed at the tabs holding it to the tub with the screw-driver and was able to release the bottom anchor  you may need a flashlight for this to see what you are doing (as I could only insert about half of my forearm into the space between the tub and the metal enclosure  if you have very skinny forearms you might be luckier).

Inserting the new bushings were a bit tricky as well  After cleaning out the grease at the top (you may not have it). I inserted the new bushing by pressing in the tabs with the screwdriver while pushing it in from the top. The bottom bushing works easy when you pull up on the rod as it snaps into place. For the second to the fourth rod, I used one of the older rods as a fish hook to pull the older rod out  much better and easier.

After I completed the rod on the left back, I went in a counter-clockwise direction  the front left, the front right and last of all the back right. The reason for this is that the back right has an additional hook for the water. I recommend you take a photo of how it looks like before detaching it, so that when you are finished replacing the rod, you can compare it with how it looked before.

For a how-to video, just google "whirlpool W10189077 suspension" and you will find several videos showing you how to replace this part.