PROBLEM: My washer was spinning, but not at full speed (I looked inside while "tricking" it by poking something in the lid switch). Water was draining, but clothes were still soaked.
FIRST (after watching a bunch of youtube videos and wasting time trying out their solutions), I watched the excellent AppliancePartsPros video for replacing the Motor Coupling, but mine looked fine (although one reviewer said his, too, looked fine--though maybe a little loose where the plastic pokes through the rubber holes--and his problem was fixed by replacing it anyway. . . so I wondered if I should, too. I decided not to after calling into A.P.P.).
SECOND, I watched the excellent AppliancePartsPros video for replacing the clutch ring. Mine looked fine, just dirty. One thing I noticed (and told the A.P.P. woman who answered my call): my spring would almost fall out of the clutch ring (once I'd removed it from the bell), whereas the video's clutch ring looked to be holding the spring in place much tighter. But other than that small detail, my clutch seemed fine. So I left my machine disassembled and called A.P.P.--head's up! They have long hours! Check them now--maybe you still have time to call in! The woman who took my call was friendly but lacking in know-how. But she put me on hold, checked with someone else, and told me to order a new clutch. I did. Because I'd been without a washer for 3 days, I decided to pay overnight shipping. (Many reviewers say the slowest shipping is fast, so maybe next time I'll gamble, but it was a holiday weekend and I didn't want to wait til Tuesday, so I paid the $23 overnight shipping. It stung at first, but I'm SO glad I did. It came early the next day (many hours before it's guaranteed arrival), and I replaced the part.
NOW EVERYTHING WORKS GREAT! It was the clutch, apparently. Thanks, Appliance Parts Pros! You were right!
A couple important notes:
1) Bring the video up on an iPad or computer rather than your phone, because there are 2 versions of the clutch video and one of them is really hard to forward/rewind and it's much harder on a small screen. And after a pause, a misplaced finger touch can exit you out of full-screen mode (and even make the video disappear). It's weird. (FYI, it's also helpful to change your "sleep" setting so the screen doesn't turn off while you're working.)
2) The clutch video should warn you: when you remove the motor and transmission with the long pipe . . . it is REALLY heavy! I'm strong but it swung out of my hands and could have damaged my floor or nearby wall.
3) If, inside your agitator, you have a screw/bolt (maybe with a rubber washer), and if, like mine, you can't get it back in without it falling out of your tool, try what I did: use tacky putty (or chewed gum or a touch of glue stick) to hold it to the tool. It's easy to pull the tool loose after screwing it in.
4) Be prepared for water spills when you remove the water lines and drainage tubes--and again when you tip the washer onto its back (and that one's stinky water).
5) To other people using the excellent videos on this site, I chose to buy my parts from A.P.P and not a local business because I believe in supporting the company who gave me the best advice. And these videos are THE BEST. I especially appreciate how clear each step is, plus showing how to put it back together.
It took me several hours over the course of days, but maybe could've condensed to 2 hours (in, fix, out) if I'd had the part on hand. It wasn't that hard. Just steps to follow.