I'm changing my clutch soon and I am getting the JWT clutch/flywheel combo as well as the Zspeed upgraded concentric slave.

Are there any other parts I should consider replacing/upgrading while the transmission is pulled? Thanks in advance.

 

I'm also replacing my stock clutch as it is going to go before long. I'm planning on the South Bend stage 2. I have some mixed reviews on the JWT. I'm replacing the slave (upgraded), master (stock) and the pilot bushing, which generally comes with most kits. I'm still undecided on weight of flywheel. I have heard of many issues with the lightweight ones as your revs will drop very fast when you back off the gas or shift. South Bend makes a billet steel flywheel that is 19 pounds, so still 10 pounds lighter than stock, but I think will be a good compromise. I think the light aluminum ones are around 12 pounds.

 

I think you're headed in the right direction. Probably similar components I'll use when the time comes.

 

When replacing your clutch replace the concentric slave cylinder, master cylinder, clutch line (upgrade to a teflon/braided stainless steel replacement line), pilot bushing (upgrade to the Nismo needle bearing), throwout bearing, and on this car replace the input/output shaft bearings. That's the cause of the cement mixer noise when you're idling.

 

Isn't the throwout bearing part of the CSC?

What's involved in changing the trans input/output shaft bearings?

 

Yes it is. I'm not your man to give you detailed info on that, it's not my forte. It would probably be fairly easy to find info on it on the 350Z or even G35 forums.

I didn't have them replaced when I had clutch replaced (didn't know how important it was at the time) and I wish I had.

 

Black Betty... Thanks for the tip on the input output shaft bearings. Didn't realize this was the culprit of some of the noise. South Bend has something they call a quiet disc... I asked them how it worked but they couldn't explain it. Do have any ideas. Also wanted to know what you picked for flywheel weight. I am getting so many different opinions on this I don't know which way to go.

 

@BB, there has to be more than one bearing on the input/output shafts. Without a full trans tear down, access may only be available to the outermost bearing. Is changing this enough... Maybe, maybe not. I'll dig around on the 370z site to see if I can find some more info as I've not heard of changing these when doing a clutch.

I did find a rather informative video on youtube entailing an entire clutch job. Granted this is on a mustang, but the concepts are extremely similar.

 

^^^^^^

What he said and read the FSM

http://www.nicoclub.com/FSM/G37/Sedan/2012/CL.pdf

Telcoman

 

For those replacing your clutch, how many miles are on your OEM clutch? I'm about to replace my CSC. My clutch seems fine at 35k but you never know til it's pulled.

 

I replaced my clutch at 86k miles, went with JWT Kit and a z speed concentric slave cylinder and I totally recommended it. When I replaced my clutch I replaced clutch, flywheel, slave cylinder, master cylinder, pilot bearing and the stainless still clutch line. AAmco also replaced hydraulic tube and concentric slave hydraulic line. The flywheel did chatter due to the lightweight but it didn't bother me as much and the upgrade was worth it

 

35k seems really low to have a clutch replaced, unless it was really driven hard and beat most of the time, I'm sure if you don't feel any slip or loss in acceleration the clutch and flywheel should be good. The only problem is that slave cylinder that everyone has issues with

 

That's what I figured as well. Plus it's an extra like $900+. I placed an order for the HD slave cylinder + SS line, oem master cylinder and Motul fluid.

 

i want to change mines but that'll happen whenever my CSC fails. I got money put aside for whenever that happens. z1 CSC delete, CMC, z1 stage 2 clutch/flywheel, braided line, throwout bearing.

 

After doing additional research, I decided to go with the South Bend Stage 2 kit. It comes in on Tuesday.

I also called infiniti parts and asked about them about the input/output shaft bearings. He had no idea what they were and said he would call me back with more information but never did. Hopefully I can go in on Monday and get some more additional information.