Hi Weldon
It sounds like you have a pilot bearing that is going out not allowing the input shaft to slow down enough to change gears causing the grinding you are talking about,, here is a guide that will show you what you are in for when replacing it. There is a slight possibility you have a transmission synchro that is worn out which is inside the transmission
Here are the guides
https://www.2carpros.com/articles/pilot-bearing-replacement
Let me know what you find
Best, Ken
Jun 27, 2016 at 10:30 AM