Product review (5 stars): Should be required for transmission repair...
The frustrating thing about replacing or even repairing the transmission of a washing machine of this type is collecting all of the necessary small parts to complete the job properly.

The transmission shaft gets corroded and scored  with years of use and submersion. This results in wear and tear on this bushing, ruining its smooth surface.  If you're installing a new, smooth transmission shaft, or even reinstalling an old one with the rough spots knocked down, it's best to reinstall using a new bushing and seal, rather than attempting to press the worn one back on.

Two screws and you're done -- probably the simplest part to change out in this whole process.