You say the Myle part was made in China. I recently opened some Febi & Mylee parts where the package listed China and the part itself said Germany. One looked like the Mercedes star was ground off. There is a lot of variation in quality and brand apparently does not denote quality.

Everything Lemforder has been fine except that the captured nut that holds the guide rod mount to the body came apart. I'll buy a wrench and modify it to get the nut out and begin again.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.