Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

the OFFICIAL aftermarket clutch thread

Old 05-29-2011, 11:23 PM
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Originally Posted by slobalt08 View Post
I have an 08 cobalt sport. full bolt ons now, but going sc as soon as I save up money for the clutch. This is my first stick car so I've never dealt with clutches before so I have some questions. I plan to only run stock pulley, and car is a DD. I won't be racing it all the time.

- I wanna get a Spec stage 2 clutch. Is spec good? Is there a better recommended clutch?

- Is it ok to use the stock flywheel, or should I get aftermarket? I hear lightweight is no good though. If stock, it must be resurfaced correct?

- Does trans fluid need to be drained when changing a clutch? If not is it recommended to change fluid anyway? Especially if I'm going sc.

- I should use Mobil1 Dexron ATF synthetic blend for the F23 right? It says on the mobile website "Mobil DEXRON-VI ATF is a high performance, synthetic blend automatic transmission fluid formulation designed to meet the stringent service fill requirements of GM’s Dexron-VI specification."

- What is TOB and do I need it? If so where do I get it?

- Clutch definitely needs to be re-bled correct? (sucks if yes I just bleed it 2 months ago what a pain in the @$$ lol)

- Do all new clutches come with an alignment tool or do I need to buy one?

Anything else I might need to know?
Stick with a + clutch set up if going with Spec, they are less prone to problems from what I've read on various forums So maybe a Spec stage 2+
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Old 05-30-2011, 01:56 AM
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anyone have the ky clutch and zzp adjustable clutch rod to lower the engageent point?
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Old 05-30-2011, 02:18 AM
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Originally Posted by slobalt08 View Post
I have an 08 cobalt sport. Full bolt ons now, but going sc as soon as I save up money for the clutch. This is my first stick car so I've never dealt with clutches before so I have some questions. I plan to only run stock pulley, and car is a DD. I won't be racing it all the time.

- I wanna get a Spec stage 2 clutch. Is spec good? Is there a better recommended clutch?

- Is it ok to use the stock flywheel, or should I get aftermarket? I hear lightweight is no good though. If stock, it must be resurfaced correct?

- Does trans fluid need to be drained when changing a clutch? If not is it recommended to change fluid anyway? Especially if I'm going sc.

- I should use Mobil1 Dexron ATF synthetic blend for the F23 right? It says on the mobile website "Mobil DEXRON-VI ATF is a high performance, synthetic blend automatic transmission fluid formulation designed to meet the stringent service fill requirements of GM’s Dexron-VI specification."

- What is TOB and do I need it? If so where do I get it?

- Clutch definitely needs to be re-bled correct? (sucks if yes I just bleed it 2 months ago what a pain in the @$$ lol)

- Do all new clutches come with an alignment tool or do I need to buy one?

Anything else I might need to know?
me and others have had many problems with spec..DO NOT buy one get clutchmasters stage 3 or 4 depending on ur power level. Lightweight flywheel also worked good for me i got faster revs, only downside was pulling out in first was a tad more difficult due to less inertia of spinning due to the ligher flywheel.
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Old 05-30-2011, 02:24 AM
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3-4 way too much. I'm only gonna be stock pulley with no other plans. I don't need anything past a stage 2 I prob wont put out more than 200tq.
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Old 05-30-2011, 02:31 AM
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ya id go stage 2 then...i know of 4 guys personally who have had specs fail on them including myself and spec did nothing for any of us. but clutchmasters is a much better clutch
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Old 05-30-2011, 02:33 AM
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whooooooooa I don't have that kind of money nearly $800 and not including shipping that's how much I paid for my sc kit! No way I can't spend that kind of money for clutch masters absolutely not. I don't even have that kinda money after spending that much on the sc kit! Any other recommendations? It's bad enough the spec 2+ is nearly $500

Last edited by slobalt08; 05-30-2011 at 02:43 AM.
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Old 05-30-2011, 03:18 AM
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Chevrolet Clutch Masters FX200 Stage 2 Clutch Kit - Clutch Masters Chevrolet Clutch Kit

this one is 620 and i dont have any experience besides those two but i wouldnt get the spec for sure haha
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Old 05-30-2011, 03:40 AM
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I don't find that many posts with failing specs. In fact the most recommended clutches i've seen said in search was spec.

What about my other questions?

Last edited by slobalt08; 05-30-2011 at 04:05 AM.
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Old 05-30-2011, 09:49 AM
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most come with an alighment tool

spec did not come with a new tob while the clutchmasters did.

no u dont need to change or drain ur tranny fluid to change the clutch

yes it will need bled after you are finished


it really dont matter to me with wat clutch u buy haha but im just saying a ton of people have had trouble with a spec and few have had problems with clutchmasters or kentucky clutch. if u want ky clutch u have to call and see if they even offer one for the f23
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Old 05-30-2011, 12:08 PM
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No one with a ZZP Clutch review yet huh man. Its between ZZP or Clutchmasters for me. ZZPs is way pricey, but there's gotta be a reason why it's pricey hopefully.

$854 plus shipping and install for the ZZP.

But I figure an extra $300 isn't that bad for reliability and performance over the clutchmasters, but then again, if clutchmasters does what I want it to do, feel stock and be reliable then why spend the extra money.
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Old 05-30-2011, 05:04 PM
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and the stage 1 is constantly outta stock for zzp. i work off tips i cant afford an 800 dollar clutch it'll take months to save up not to mention bills i have to pay on top of trying to save. It took me 2 years to save up $800 for the sc kit... I'm thinking of just saying f it and stay with stock clutch. Buddy with 2.2 has 85k on stock clutch, just SC'd with 2.9 and its holding up fine even at the track so why stress my self out over the clutch now?

Questions left:



- Is it ok to use the stock flywheel, or should I get aftermarket? I hear lightweight is no good though. If stock, it must be resurfaced correct?

- I should use Mobil1 Dexron ATF synthetic blend for the F23 right? It says on the mobile website "Mobil DEXRON-VI ATF is a high performance, synthetic blend automatic transmission fluid formulation designed to meet the stringent service fill requirements of GM’s Dexron-VI specification."

- What is TOB and do I need it? If so where do I get it?

Last edited by slobalt08; 05-30-2011 at 06:13 PM.
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Old 05-30-2011, 11:26 PM
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subbed to hear from some ACT people. Never had good luck with spec.
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Old 05-31-2011, 04:05 AM
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i agree ive had nothing but problems with my spec stage 3+ and light weight flywheel. Come to find out my light weigth flywheel is made wrong and thats y i kept blowing out slaves. Over all it does hold the power but to many head aces. Some pepole have do not probs with the set up. i have but i guess im the unlucky one lol this is on my lnf. i think if u stick with the stock flywheel and use the spec stage +3 clutch and pressure plate u will be fine.
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Old 05-31-2011, 07:46 AM
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Either fmywheel has its ups and downs so its ur choice

Tob is the throwout bearing which engages ur clutch when u hit the pedal and yes u need one

All I k ow about the tranny fluid I remember it is automatic tranny fluid but not positive on wat kind
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Old 05-31-2011, 09:49 AM
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LSJ
GMPP Clutch
Stock machined Flywheel
700
The clutch is very cheap and very much worth it. Grabs good and feels close to stock for daily driving.
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Old 06-01-2011, 02:37 PM
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I can't get over the ky price, can you fix the high engagement point for the KY?
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Old 06-01-2011, 08:49 PM
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Originally Posted by slobalt08 View Post
3-4 way too much. I'm only gonna be stock pulley with no other plans. I don't need anything past a stage 2 I prob wont put out more than 200tq.
No brainer..get the GM upgraded clutch/TOB..it's basically similar to TC clutch as I understand it.
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Old 06-01-2011, 08:51 PM
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spec stage 2 clutch here in my 2.2
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Old 06-01-2011, 09:04 PM
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07 2.2
1st setup n/a
Exedy stage 1 and exedy lightened flywheel, zzp clutch rod
Great for na setups, heavier pedal feel quick revs, 25000 miles no probs
Turbo first setup
Spec stage 3+ stock flywheel zzp rod
Super light engagement, slipped from start max it held was 319/274. Was down to holding 250/230 at 3000 miles. no help from spec, junk stay away
new setup
clutchmasters stage 4 6 puck, new stock flywheel, zzp rod
don't know yet find out this weekend, cars been down 2.5 weeks dealing with spec

07 2.2
1st setup n/a
Exedy stage 1 and exedy lightened flywheel, zzp clutch rod
Great for na setups, heavier pedal feel quick revs, 25000 miles no probs
Turbo first setup
Spec stage 3+ stock flywheel zzp rod
Super light engagement, slipped from start max it held was 319/274. Was down to holding 250/230 at 3000 miles. no help from spec, junk stay away
new setup
clutchmasters stage 4 6 puck, new stock flywheel, zzp rod
don't know yet find out this weekend, cars been down 2.5 weeks dealing with spec

Last edited by Brags; 06-01-2011 at 09:04 PM. Reason: Automerged Doublepost
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Old 06-01-2011, 09:10 PM
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yayyy more people to hate spec lol i will steer away so many customers its not even funny...horrible customer service in every way
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Old 06-02-2011, 01:27 AM
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Originally Posted by ronn View Post
No brainer..get the GM upgraded clutch/TOB..it's basically similar to TC clutch as I understand it.
i have f23 trans
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Old 06-02-2011, 01:35 AM
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Stickied. Surprised no one made this thread before.
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Old 06-02-2011, 01:57 AM
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Kentucky Clutch Stage 3
Six puck Kevlar/Ceramic
Stock flywheel
Stock slave cyl.

Installed slave that came with kit, but it was a bad slave and leaked. Had dealership install the stock slave and it's been great since. Engagement point is great, just like stock. Clutch has been very streetable since day one, except when the slave was leaking. Love the clutch!
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Old 06-02-2011, 09:27 AM
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Originally Posted by hunter19707 View Post
Kentucky Clutch Stage 3
Six puck Kevlar/Ceramic
Stock flywheel
Stock slave cyl.

Installed slave that came with kit, but it was a bad slave and leaked. Had dealership install the stock slave and it's been great since. Engagement point is great, just like stock. Clutch has been very streetable since day one, except when the slave was leaking. Love the clutch!
How come everyone is saying its so high? Is it because the ZZP Rod
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Old 06-02-2011, 09:53 AM
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Originally Posted by slobalt08 View Post
i have f23 trans
I think the exedy stage 2 would be good for you. I have nothing but high praise for exedy, just wish they made something to hold my power

Originally Posted by vahdyx View Post
How come everyone is saying its so high? Is it because the ZZP Rod
I don't think so, if they had adj. zzp rod they could move it down if it was a problem

Last edited by Brags; 06-02-2011 at 09:53 AM. Reason: Automerged Doublepost
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