Help with clutch decision!!! Please
Instructor
Joined: Dec 2012
Posts: 214
Likes: 26
Has anyone used the torque tube couplers from Corvette Central lately? I am having a hard time swallowing the 130 dollar price of the factory GM ones. I dont even know if mine are bad but since I'm going to be digging into it. I wanted to have a couple on hand just in case they are.
Racer
Joined: Oct 2009
Posts: 290
Likes: 5
From: St. Petersburg Florida
Acct Suspended APR 2026 by request
Joined: Dec 2010
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2020 Corvette of the Year Finalist (performance mods)
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as stated above, check the master cylinder... the chances of a stock replacement clutch making the pedal that stiff seems unlikely to me but an adjustable tick master cylinder can make the pedal quite a bit stiffer... the easiest way to check is to look under the dash, if you see an adjustable turnbuckle at the end of your clutch pedal like the pic below then that is most likely the issue... if you do have one, adjusting it will not affect the pedal stiffness but it is a much easier/cheaper repair than doing a clutch... if you do in fact have a tick they offer a stock bore master cylinder that will not increase pedal stiffness so I would start with that first rather than replacing it with a factory master cylinder
Thread Starter
Instructor
Joined: Jul 2012
Posts: 175
Likes: 15
From: Strafford, New Hampshire
as stated above, check the master cylinder... the chances of a stock replacement clutch making the pedal that stiff seems unlikely to me but an adjustable tick master cylinder can make the pedal quite a bit stiffer... the easiest way to check is to look under the dash, if you see an adjustable turnbuckle at the end of your clutch pedal like the pic below then that is most likely the issue... if you do have one, adjusting it will not affect the pedal stiffness but it is a much easier/cheaper repair than doing a clutch... if you do in fact have a tick they offer a stock bore master cylinder that will not increase pedal stiffness so I would start with that first rather than replacing it with a factory master cylinder
Thread Starter
Instructor
Joined: Jul 2012
Posts: 175
Likes: 15
From: Strafford, New Hampshire
So this weekend I did the clutch in the Vette. Bought a LUK Z06 clutch kit with flywheel. Had it balanced at a local engine shop. 2 New torque tube couplers, factory GM. New clutch master and slave, both factory GM also. Replaced the fluid in tranny and rear diff with Amzoil. And put in my c6 shifter with my C5 ball. What a difference! Drives like a completely different car now and way smoother and more responsive. Glad I finally got this done. Thank you for all of the advice.
Last edited by cloud 9; Sep 19, 2016 at 05:35 PM.
Thread Starter
Instructor
Joined: Jul 2012
Posts: 175
Likes: 15
From: Strafford, New Hampshire
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Advanced
Joined: Apr 2009
Posts: 92
Likes: 2
I am going to change my clutch because my slave cylinder is leaking and now the clutch is going - probably the fluid. Anyway the Luk looks like it may be a good one? It is basically the LS7 then? Parts geek with the flywheel is only 245.00. Not going to add much at all in power. Good Choice?
Thread Starter
Instructor
Joined: Jul 2012
Posts: 175
Likes: 15
From: Strafford, New Hampshire
I went with the ls6 clutch and flywheel. The ls7 flywheel is way heavier , from what I've read and it sucks up power. All I have is exhaust and a dual cone intake filter. I can't afford to do a bunch of upgrades. Plan on fixing a bunch of stuff while you got it apart..cause it's a lot of work. Glad I bought the TT bushings, cause mine were beat as you could see. And pay close attention when disassembling and reassembling. Arrows on the bushings and mark it how it comes apart and make sure it goes back together the same way. I just wanted it to work properly. And now it does. 