In all of the videos posted I noticed all the engines were cold (oil temp not over 150 degrees) and the trans temps were also cold. I'm not excusing the bad 2nd gear synchros, but warming up first might reduce the grinding. The third video was grinding even at low RPM's, so I bet even fully warmed it would still grind.
On the positive side, these are the first videos I've seen of the 2nd gear grind, and I can happily say my M6 does not grind like this. My shifter just feels notchy, but doesn't make a noise even close to these, and actually shift better at high RPM.
But I still see a rebuilt TR6060 down the road...
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