CLUTCH - NO MORE! - ZR-1 Net Registry Forums

MikeG · 07-15-2010

OK Brothers, I need your help and advice.

My clutch on #135 (91) has been slipping off and on for the past year. I kept putting off the replacement (really dumb - I know) because one time it would slip - power take off, then the next time it wouldn't. One of those slipping time, it was slipping bad (smokey and stinky) - but only in first.

Anyway - it gave up the ghost yesterday and need to replace it. I currently have a CENTERFORCE clutch. I really like it, so looking for a source to replace it -- or your recommendations for replacing it.

Any suggestions would be appreciated. If you have a recommendation, I would like to have the source and cost.

Hammer · 07-15-2010

Summitt Racing, spensive $800

http://www.summitracing.com/parts/CTF-DF063084/

A1990 · 07-16-2010

Mike:

Are you running single mass flywheel or stock dual mass? I am running fidanza single mass with Spec 3+ clutch. $699.00 or less...Nice unit.

Paul Workman · 07-16-2010

I bought mine at AutoZone. The assembly was a "Dynapak", but actually is the Valeo (OEM) part. I got it for just under $300 including the TO bearing and plastic guide, and it has a lifetime warranty.

Sometimes you will get the LT1/4 clutch pressure plate from AutoZone (and others?) which work as well, but you will need slightly shorter bolts. Those are available too - no biggie.

IF your clutch was slipping/burning, you might have cooked your flywheel, i.e., it may now have some hard spots on it and be needing to be replaced too. If after you check it out and decide to replace it, I have a good used one I'll part with. Lemmeno!

P.

rhipsher · 07-16-2010

What A1990 said. I got mine for $629.10 http://www.lmperformance.com/44263/25.html And even though this http://www.lmperformance.com/spec.asp shows it as being a sprung disk it's not. It's solid. Works just fine.

MikeG · 07-16-2010

Thanks guys for the posts back. I am currently in Spearfish, 4th day of our Black Hills Corvette Classic. The Z is in a shop waiting patiently for my return - a VERY good friend loaned my his 96 to drive out here.

Have talked to a couple of ZR-1 guys here, but have said LT1 is cheapest way on 1 said that is Heibecks recommendation - so thought I'd ck with me when I got home on Monday. Cory has responed asking what the problem is, sent him normaly email, waiting for response.

I have not checked any of the links yet, but thanks. Our Classic is one busy week end. Spent most of the day helping at the autocross, resting before going downtown for Vette Street. Have to get up at the crack of dawn (almost) to lead a tour group to Mt Rushmore for breakfast and then onto the Needles Hwy and Iron Mt Road. I'm glad 135 gave up the ghost when it did - in the middle of the Black Hills is no place to lose a clutch!

Thanks again for the posts.

Denny - flywheel is alloy, single mass - don't know who's, nothing in the papers that came with the car.

Won't know what shape it's in until we crack it open. Mechanic doesn't want to start until parts are on hand, but will talk to him about poss. of flywheel damage.

I'll keep y'al posted!

07-15-2010	#2
Hammer Join Date: Apr 2006 Location: Ideho Posts: 2,647	Re: CLUTCH - NO MORE! Summitt Racing, spensive $800 http://www.summitracing.com/parts/CTF-DF063084/

07-16-2010	#3
A1990 Join Date: Dec 2003 Location: Grand Island NE Posts: 1,512	Re: CLUTCH - NO MORE! Mike: Are you running single mass flywheel or stock dual mass? I am running fidanza single mass with Spec 3+ clutch. $699.00 or less...Nice unit. __________________ Dennis Fierstein 90 ZR-1 #2562 Atomic-Z ZR-1 Net Registry Chairman of the Board ZR-1 Net Registry Treasurer

07-16-2010	#4
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: CLUTCH - NO MORE! I bought mine at AutoZone. The assembly was a "Dynapak", but actually is the Valeo (OEM) part. I got it for just under $300 including the TO bearing and plastic guide, and it has a lifetime warranty. Sometimes you will get the LT1/4 clutch pressure plate from AutoZone (and others?) which work as well, but you will need slightly shorter bolts. Those are available too - no biggie. IF your clutch was slipping/burning, you might have cooked your flywheel, i.e., it may now have some hard spots on it and be needing to be replaced too. If after you check it out and decide to replace it, I have a good used one I'll part with. Lemmeno! P.

07-16-2010	#5
rhipsher Join Date: Aug 2008 Location: Houston, TX Posts: 2,314	Re: CLUTCH - NO MORE! What A1990 said. I got mine for $629.10 http://www.lmperformance.com/44263/25.html And even though this http://www.lmperformance.com/spec.asp shows it as being a sprung disk it's not. It's solid. Works just fine. Last edited by rhipsher; 07-16-2010 at 12:37 PM.

07-16-2010	#6
MikeG Join Date: Aug 2007 Location: Sioux Falls, SD Posts: 77	Re: CLUTCH - NO MORE! Thanks guys for the posts back. I am currently in Spearfish, 4th day of our Black Hills Corvette Classic. The Z is in a shop waiting patiently for my return - a VERY good friend loaned my his 96 to drive out here. Have talked to a couple of ZR-1 guys here, but have said LT1 is cheapest way on 1 said that is Heibecks recommendation - so thought I'd ck with me when I got home on Monday. Cory has responed asking what the problem is, sent him normaly email, waiting for response. I have not checked any of the links yet, but thanks. Our Classic is one busy week end. Spent most of the day helping at the autocross, resting before going downtown for Vette Street. Have to get up at the crack of dawn (almost) to lead a tour group to Mt Rushmore for breakfast and then onto the Needles Hwy and Iron Mt Road. I'm glad 135 gave up the ghost when it did - in the middle of the Black Hills is no place to lose a clutch! Thanks again for the posts. Denny - flywheel is alloy, single mass - don't know who's, nothing in the papers that came with the car. Won't know what shape it's in until we crack it open. Mechanic doesn't want to start until parts are on hand, but will talk to him about poss. of flywheel damage. I'll keep y'al posted!

07-15-2010	#1
MikeG Join Date: Aug 2007 Location: Sioux Falls, SD Posts: 77	CLUTCH - NO MORE! - Update OK Brothers, I need your help and advice. My clutch on #135 (91) has been slipping off and on for the past year. I kept putting off the replacement (really dumb - I know) because one time it would slip - power take off, then the next time it wouldn't. One of those slipping time, it was slipping bad (smokey and stinky) - but only in first. Anyway - it gave up the ghost yesterday and need to replace it. I currently have a CENTERFORCE clutch. I really like it, so looking for a source to replace it -- or your recommendations for replacing it. Any suggestions would be appreciated. If you have a recommendation, I would like to have the source and cost. Last edited by MikeG; 08-11-2010 at 05:59 PM.