Just to give you a little history if you didn't see/remember any of my posts this week. I just got my car back today. I had a grinding going from 2 to 3 at high rpms. I got new 3rd gear syncros, new clutch and new spider gears.

Everything is great the clutch feels so much lighter and easier. I love it. Except...

When I'm in 4th with my foot off the gas or just a little bit on the gas, I can feel soemthing in the shifter. It's like it will move up a 1/4 an inch and then back and then up, sometimes just once, sometimes a few times quickly. It's not like it's coming out of gear, just the shifter is moving back and forth ever so slightly.

Is this something I should be concerned about? Any ideas about what it is?