just curious...when you got this machine, did you do a thorough cleanout?.....as in taking it all apart and scrubbing everything!
I just got in an absolute filthy NorgeTag, short of taking out the tub, everything got scrubbed, but the agitator doesn't come apart, and there are areas I can't get to, so as I wash more and more hot water loads, these flecks are showing up as they are breaking off...
grease and oil from the tranny usually show up as a ring in the tub or smudges in the machine or on the clothing......
you can always pull the agitator or tub to try and locate where the problem may be....