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Transmission Decisions

Old 01-10-2019, 03:04 PM
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Bernardo Z33
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Default Transmission Decisions

Hello Z brothers! I am sad to say my CD001 tranny is almost toast. My car has 159k miles and the engine has 82k but stock tranny. 3rd gear grinds all the time besides if I double clutch. 5th grinds only when cold. Itís all clunky and my pilot bushing is going out too from the noise. Iíve tried to sell the car but no one wants one with a bad tranny so I must keep it.

Ive put a lot of attention and money into it and donít want to sell it just now. How long can I keep grinding 5th until it goes out? I hate having to double clutch every time into 3rd. I canít race and stuff lol basically making it so unfun.

Getting a clutch is cheap and my friends dad can do labor for cheap. My problem is getting a new tranny. I donít want to spend a lot on one since this is my daily driver and itís getting old. Iíve thought about doing a manual to auto swap but donít know if thatís possible. Rebuilding the transmission but Iíve heard that costs the same as buying a new one. I would get the CD009 but itís $1.7k and Iím trying to avoid that price tag.

ik you guys will think Iím cheap and want everything free but I want your guys opinion on what I should do and what would be the cheapest for me?? The interior and exterior are almost flawless with a new paint job. What would you guys do or recommend? Thank you to everyone that helps!
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Old 01-10-2019, 04:21 PM
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As far as the tranny goes, what kind of tranny fluid are you using? When was it last changed?
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Old 01-11-2019, 04:02 AM
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Bernardo Z33
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Originally Posted by dkmura View Post
As far as the tranny goes, what kind of tranny fluid are you using? When was it last changed?
I used Nissan OEM 75w-90 fluid. I didnít want to use anything else and I change it about 3 months ago. Didnít fix anything
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Old 01-11-2019, 09:24 AM
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I'd consider a change to Redline MT85- it's helped with syncro issues in the past and is a cheap option to try.
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Old 01-11-2019, 10:06 AM
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Originally Posted by dkmura View Post
I'd consider a change to Redline MT85- it's helped with syncro issues in the past and is a cheap option to try.
I'd concur on that to some degree; but when the synchros are gone, they're gone. Ask me how I know.... mine still grinds 3rd occasionally even with MT85. (Although I can still push it hard and never grind with higher RPM heel/toe downshifts.... it's in everyday street driving cold and not really paying attention when it occurs most.)

The question on the transmission replacement itself depends on how long you plan to keep the car. If it were me, I'd opt for (and may one day) a new CD009 or CD00A (the newest replacement evolved from the 009). But if you only plan to keep the car for a couple of years or so, just find a newer CD008 or if possible, a used 009. They do come up occasionally. There are a couple of comprehensive yards out here (in Rancho Cordova, CA) that specialize in Nissan/Infiniti. You might want to check them out for current "inventory"...

https://www.google.com/search?client...issan+recycler

I've used other yards in that area - there's a whole bunch of them on "Recycle Road" that specialize in various marques. Sourced a couple of transmissions for my other non-Nissans back in the day. Worked great. Segue/digression: Those were the days when I would actually do complete transmission/torque convertor swaps alone in the middle of the night hoisting transmissions with my chest and arms only! Thinking about those days.... "Was I f'n crazy?!"

Answer: Yes. My psychosis is no different today except I don't do that kind of heavy lifting anymore. Hahahaha.
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Old 01-12-2019, 07:35 PM
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Bernardo Z33
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Originally Posted by dkmura View Post
I'd consider a change to Redline MT85- it's helped with syncro issues in the past and is a cheap option to try.
I donít think that will help with 3rd gear I think it is forever screwed
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Old 01-13-2019, 12:33 PM
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Originally Posted by Bernardo Z33 View Post

I donít think that will help with 3rd gear I think it is forever screwed
Could be; but you asked for cheaper ways to help the situation. Also, forget about trying to swap a auto tranny for your manual. Way more trouble than its worth.
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Old Yesterday, 05:44 AM
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Bernardo Z33
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Originally Posted by dkmura View Post
Could be; but you asked for cheaper ways to help the situation. Also, forget about trying to swap a auto tranny for your manual. Way more trouble than its worth.
I see. I actually got a man that wanted to buy it for $6500 regardless of the tranny issue. Iím now looking for an HR but heard about the oil galley gasket issue and I heard that costs more to replace than a tranny hahah
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Old Yesterday, 08:00 AM
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I thought the fluid swap was a good idea.

After that I'd buy a new 009 from Z1. While credit cards can be evil......this is kinda what they are made for.
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Old Yesterday, 04:37 PM
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New transmission...do it.
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Old Today, 11:41 AM
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Bernardo Z33
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Originally Posted by eZg View Post
I thought the fluid swap was a good idea.

After that I'd buy a new 009 from Z1. While credit cards can be evil......this is kinda what they are made for.
Alright man. Iíll try the fluid and see if that helps. Thank you
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Old Today, 11:42 AM
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Originally Posted by guitman32 View Post
New transmission...do it.
thatís what I want to avoid. Too much money for the age of the car
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Old Today, 12:38 PM
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Hi Bernardo. You can drive the car with your current transmission about as long as you could after installing a new transmission. The difference is the aggravation you have with the "grinding noise and feel."

A transmission replacement mostly spares you the annoyance, but does not guarantee longer service. I was able to replace my faulty transmission under warranty, but before doing this I tamed the noise-aggravation by "rev-matching."

Since your car is older (I agree with your comments), I would keep what you have and learn to drive to its idiosynchracies.

Last edited by Spike100; Today at 12:41 PM.
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