Hi, recently I ran into some gearbox problems in my manual 04 350z. The whole 5th/6th gear assembly is shot. Anyone with some reasonable research behind them would know that the 03-04 gearbox is know to had some bad synchos and shifting problems. I am planning on buying a low-mileage gearbox as a replacement, as this is more viable than repairing the damage in the old one. I have done some research about replacing the 04 trans with an 06 (CD009), but I haven't found anyone who can prove to me that it will work without any problems. Does anyone know if the 06 will fit perfectly to an 04 car, or has anyone done it before?

Thanks

 

All DE transmissions bolt up just fine. Ratios all the same and what not. But here are the differences once again:

2003 6MT
Double cone synchronizers in 1st and 2nd
No triple cone synchronizers

2004 6MT
Double cone synchronizers in 1st, 3rd, 4th
Triple cone synchronizer in 2nd

2005 CD008
Double cone synchronizers in 1st, 3rd, 4th
Triple cone synchronizer in 2nd

2005+ CD009
Double cone synchronizer in 4th
Triple cone synchronizer in 1st, 2nd, 3rd

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Note: 2007+ CD009 on HR equipped cars do NOT bolt up to DE engines AS IS. It IS possible to use the '07+ transmission on DE with modification (swap) of the bell housing, gears, and slave cylinder assembly but the OP who posted about that swap on the forum said it wasn't worth it. Easier/cheaper (or about same cost) to purchase a brand new 009 (~$1800. USD) for DE from one of the vendors supporting this site.

Mic

 

mic, you are so politically correct, i would have answered with a simple yes....haha

 

When I get to 15,617 posts in my quest for 20, I'm sure I'll say the same thing. HAR!!!!

But ya, you have to understand that in my day work, I'm paid for my recommendations regarding "system efficiency" in great but understandable detail. Alas, when it's time for MicTheZFanatic to make recs, I do it with details cuz it takes my "work" brain turbos some time to spool down and cool off.

Or better said, "I haven't had my first beer yet".

 

first beer.... hell i have passed that and moved on to rum, about to fire up the grill

 

Thanks!! I'm not looking to buy a new one (trying to save money) so i was looking at getting a cd009 from a 2006 z from a junkyard, trying to find one with low mileage, my car isn't going to last me more than 3-4 more year anyways cause its got 115k miles on it.

 

nissan designed the VQ to go to 200k at least. So if you take care of it and drive 15k a year you still have nearly 6 years.

If swapping to a cd009 be sure to get the shifter bracket with it.

 

very useful thanx! was wondering the same thing

 

what would happen if I didn't? just wondering

 

I figure the 100's of threads with people who swapped to the 09 would be sufficient. Mine has been working well in my car since 07

 

Not positive but the two are distinctly different designs. Might be shifter related... binding, alignment, that sort of thing.