I was driving the car in Drive (D) around 3k rpm going into second gear the transmission with starting jerking and kicking, I dropped it off at the dealer and they replaced the transmission, I was told the internal clutch went bad.

I could not find any service bulletins or anyone else having this problem.

 

My 08 auto hasnt had any issues yet, what was your mileage at the time of failure?

 

61,000 miles

 

I am grateful my tranny has held up with no issues at all. 84,000 miles and runs strong, I pray I don't run into a tranny replacement! I don't wanna know the cost lol. At least you got a new tranny man. I have a 08 btw!

 

I dont know if there is any difference but my 2008 g37 has production date Aug/07, I was thinking maybe the transmission was revised like a lot of infiniti parts are, because they whiched the 2009 G37 to a 7 speed transmission

 

All I know is the 7spd has more issues than our 5spd.

 

Yea Im happy with my 5 spd too!! I raced a few when mine was stock against other stock cars and i was a small bit quicker. Out of probably 5 to 6 runs, mine has 38,120 miles now but so far so good. I think i may try the Trans Go kit soon.

 

you are talking about 7 speeds? the loaner 7 speed sedan felt faster

 

ive got 63,000 on my 08 and ive had the transgo for about 10,000 and still running strong. "knock on wood" lol