I'm posting this for a friend, and I have driven his 05 G35 6MT so I'm hoping someone here can help me.

Couple of problems:
#I noticed when I'm letting the clutch catch on in first gear and in reverse, it makes a noise similar to a scraping sound.

#When in first and second gear, if I'm in low RPMs driving and the shift ****/gearbox is normal. Once I step on the throttle and accelerate a little more, only in first and second, the shift **** begins to shake uncontrollably and makes a weird clunking noise.

I would appreciate it if someone could help me and my friend out on this problem.

 

1. How many miles on the car?
2. Has the MTF/diff fluid ever been changed?
3. Does the clutch engage higher or lower than it did before the problem manifested itself?

 

sorry for the late response.
1. 70k
2. yes
3. clutch feels like it is being engaged at same position as before