By the way, the service manager did talk to me about the syncros that were replaced in the transmission of the guy I talked to on the the phone a few days ago. He said in that particular instance, the grinding was being caused, not so much by bad syncros as by excessive longitudinal movement on the main shaft. Instead of the syncro pushing on and slowing it down, the syncro pushed the whole shaft instead. (if that explanation makes sense?). He said they had to shim the shaft to stop that movement and get the syncros to do their job properly.