Hey guys, I have a 2005 G35 coupe 6MT 105k miles. I've owned it for about a month now and I've recently over the past few weeks been noticing an issue when engaging reverse.

The best way I can explain it is I push the clutch in, push the shifter down and then put it right and down to engage reverse and sometimes (not every time but like 1/3 of the time) it makes a decent volume grinding noise but not as loud as it would be if you were driving and try to engage reverse while going fast. Grinding may not be the best word choice but that's kind of what it sounds like to me.

Also, it feels somewhat difficult for me to get it into reverse sometimes. Sometimes it just slides right in, but other times I have to really give it a hard shift down for it to get in reverse and stay. Occasionally I will feel like it is locked in the gear but then I will look out the back window to start reversing only to realize I'm not moving and the shifter is in neutral still as if it never locked in place.

I almost never have this issue when reversing from a cold start. Its totally random it seems. Like I said, sometimes it works fine but other times it takes some force to get it to lock in reverse and those are the times that I get the light grind type noise..

Any ideas? I tried searching but couldn't find this specific problem