Just changed the transmission fluid after having the trany out for a shift shaft fix. When I drained the oil the first time there was this:
I just put a couple hundred miles on it after the fix and to be sure I wasn't making the above I drained the trany fluid again and caught it in a clear jar. I held the jar up to the sun so light is reflecting off the fluid and I see "shiny particles". Very small but a lot of them. I talking smaller than a pin tip not the head.
The magnetic plug just had a black muck on it, no particles like the above. With my shifting issue I did grind a few gears and I am thinking that's where the initial particles came from.
I'm wondering if I am getting residual particles from before. I am going to put some more miles on it and change it again to see if it is staying put, getting worse or getting better. In other words its cleaning itself out. AND is there any commercial service to test the fluid for content, i.e., what metal it is etc.?