Product review (5 stars): Fixed SD error on Kenmore Elite Oasis HE 110.27087602
I had 2 issues with my ~8 year old Kenmore Eilte HE washer:

1. UL (unbalanaced load) error - This was my initial issue with the washer. As I was inspecting the machine for this issue, error 2 came about.

2. SD (suds) error - In an attempt to diagnose and repair this issue, I pull the drum, and cleaned out the pump area. There were 6 coins below the drum, but removing those and a general clean didn't fix my error.

The UL error is based on the suspension kit. It's around $50 on Amazon and very straight forward to install. The SD error took additional digging. I combed through the reviews on an appliance parts site and found the hub kit with 23 reviews. Most of them sighting the hub replacement kit as the culprit. When I called that retailer, the agent and the technician she checked with, blamed the control board. Not only is that expensive, I replaced the control board in this machine about a year after purchase based on an F1 error.

The repair took about 2 hours for both parts. This included cleaning the metal drive shaft of rust and debris. I used a wire wheel attached to my drill as well as some emery paper purchased with the parts.

After the install was completed, the test cycle ran as it should. Before it would stop at step C8 with the SD error. I'm publishing this review to help others with similar a similar issue on these machines.  I've attached photos of the worn inner splines of the hub kit. The splines at the top are almost worn smooth. Before the repair, the agitator would easy spin freely of the drum.