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#1 |
Senior Member
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Location: Cocoa FL
Posts: 596
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Is There an Easy Way to Know Which Size Clutch I Have?
I have now come to the part where I can actually drive my truck and on it's maiden voyage I realized why it most likely was parked. The clutch is gone. So, with that said, is there a way to tell if it's an 11" or 10" before I pull the trans? All the places I search have both listed and I would like to have all the parts on hand when I start so I can finish it in one effort. Does it even matter which one I get? It's a '69 250 cid 3 on the tree. Those are the specs I search under and get both clutch sizes.
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Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#2 |
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Location: Hollister Mo
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
FWIW......I've got a 69 250 3 on the tree and it has an 11 inch. I just happen to have it laying here.
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#3 |
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Location: kokomo,indiana
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
got an 11 in my 72 with a 4 on the floor, granny gear, i would make sure you buy a good flexplate, i went cheap and it flexes, ill probably end up having to drop the transmission at some point, not something you want to do twice
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#4 |
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Location: Cocoa FL
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Flex plate? Those are for automatic trannys. There are 3 parts to a clutch setup: flywheel that is attached to the crankshaft, the actual clutch plate that has splines and is attached to the trans input shaft (slides over it) and then the pressure plate which is what the clutch pedal is attached to. What do you mean by "flexes?" Could it be a stiff pressure plate and you're getting some deflection in the clutch pedal mechanism/arm? There shouldn't be any flex in a clutch setup, unless you maybe need a different descriptor for your issue - ?
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Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side Last edited by maverickmk; 03-28-2020 at 01:12 PM. |
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#5 | |
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Location: Oberlin
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
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#6 | |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Quote:
![]() Nope, no HD on it at all. Thanks for the info, I appreciate it.
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Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#7 |
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Location: Alden NY
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
That looks like a 10 1/2" to me (often listed as a 10 3/8")
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#8 |
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Location: Simi Valley, CA
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
If you can get at the pressure plate, you can measure the distance between the bolts. Different diameter parts would have different separation distances. The bigger clutch would, of course, have the bolts farther apart. Then you can go to the parts store and have them pull both pressure plates to compare. It's been a dog's age (or two) since I've put in a clutch, but if there is just a thin sheet metal cover on the front of the flywheel, I think the bolt holes are tapped through. You could still measure it that way. HTH
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#9 |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
yes
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#10 | |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Quote:
__________________
Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#11 |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
I got the clutch pulled out today and now I am stumped as to the size. Do I order an 11" or a 10"??? It measures almost exactly 10 1/2".
![]() ![]() And isn't that clutch a beauty ![]() ![]()
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Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side Last edited by maverickmk; 03-29-2020 at 03:15 PM. |
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#12 |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Missing pieces usually means someone was side-stepping the clutch.
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#13 |
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Join Date: Dec 2017
Location: Elkhart, Texas
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
It's exactly what the tape measure says --- 10 1/2 inches.. Don't "order" anything.. In these hard times, support your local economy.. Take your wore out pressure plate, clutch disk, and throw out bearing to the local auto parts store and tell them you want a 10 1/2 inch clutch kit.. They'll want the old stuff for a core.. If your flywheel looks anything like the pressure plate, it'll need refacing also...
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#14 | |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Quote:
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#15 | |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Quote:
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Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#16 |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Summit about $200.00 with free shipping
Zoom MU Series Clutches MU5473-1B Pioneer Flywheels FW-100 double check part #s and buy new ARP flywheel and pressure plate bolts and you'll only have to do it once . don't resurface heat checked flywheels . ![]()
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#17 |
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Location: Cocoa FL
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Rock Auto has clutches for $75.00 with $10.00 shipping. I have a 5% coupon code which just about covers shipping. Locally, the cheapest I can find is a 10" for $120.00.
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Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#18 | |
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Location: Elkhart, Texas
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Quote:
Son, I've had wrenches in my hands for over 60 years.. How many clutches have I replaced?? Counting front wheel drive and foreign built, oh, probably somewhere in the thousands.. So can the smart ass attitude in my presence.. |
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#19 | |
Senior Member
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Location: Cocoa FL
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Quote:
__________________
Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#20 | |
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
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#21 |
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Location: Cherryville, NC
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Gentlemen please....some manners please...
10 1/2" clutches were common on a variety of Chevrolet products... see https://www.partsgeek.com/gbproducts...AaAst3EALw_wcB A simple google search using Chevrolet 10 1'2 clutch kit will return many results.... Have fun everyone and stay safe ![]() ![]() ![]()
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#22 |
Senior Member
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Location: Cocoa FL
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
If anyone cares, if you pull out a clutch from a 250 cid I6 and it physically measures 10.5" you need to order a 10" clutch, not an 11".
__________________
Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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#23 |
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Location: Bowser
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
Interesting!
If the disc measures 10.5 then what does the pressure plate measure? |
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#24 |
Senior Member
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Location: Cocoa FL
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Re: Is There an Easy Way to Know Which Size Clutch I Have?
If you look at the picture I posted it measures 10.5" as well.
__________________
Die with memories, not dreams. Not to brag, but I don't need alcohol to make really bad decisions. 1969 GMC Short Step Side |
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