Product review (5 stars): Fixed our non-cleaning washer.
Once I put the seal in rightside up (whoops), this worked great.  The chopper wasn't working, because the old nylon drive was worn.  This new one is driven off of the metal hex sleeve that you put on the motor.  There are some nice videos online for how to put it in.  Just be sure to put the seal in metal side DOWN for a friction fit.  Our washer is now cleaning like new and not leaving residue on dishes.  There is a slight noise from the chopper rubbing against the plate, but I expect that to reduce as they wear into each other.