I was driving my (m6) car the other night and I went to down shift from 6th to 5th, and unfortunately I hit 3rd for a quick second. The car chirped and I quickly hit the clutch and shifted back into 6th. Now I notice (only when I down shift), in mid range RPM the car makes a slight grinding nose and I can feel it in the shifter, but up shifts just fine with no noise. What am I looking at here?

 

My guess is that you probably messed up a syncro and or blocker ring.

 

hmmmm, seems weird because it only does it down shifting.

 

Synchro stop ring for that particular gear. Rest of the synchro is more than likely fine. downshifting you are making the stop ring work a bit harder to bring that lower gear up to speed.

 

So is it ok to still drive if I just don't downshift to much?