Product review (3 stars): Whirlpool duet bearings and seal
The bearings were good but the seal was a little loose.  I installed it using silicone on the outside as an aid to keep it in.  So far so good, have been running a few weeks without issues. In order to remove the old seal, it required the use of an air hammer.  The steal in the seal is very tough to drill.  Good option as opposed to buying a drum half at $200.  Good luck!  Takes a while to put these in.