Clutch/flywheel combo HELP!

70chall440 said:

Basically there is a 11" and a 10.5"; you can either size with a 23 or 18 spline. You need the right size pressure plate and clutch for the flywheel you have. You do not have to buy a new flywheel, any reputable machine shop can cut it and clean it up which is probably the best way course of action because you know it fits.

As to pressure plates and clutches, there are many choices out there, just be careful not to get sucked into some high speed, gee whiz deal; just go with a good company like Mcleod, Ram, etc. I usually try and get a set (clutch and pressure plate). You will need to know what size flywheel you have which will require you to measure it.

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cryplydog said:

Look at Brewers performance site. I have the 10.95 clutch in my 64 dodge from them without having to go to the factory 11" system.

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Steve009 said:

Need some help with this one. I have a 64 Plymouth with a 383 4 speed. Looking to replace the clutch/pressure plate, and flywheel. I know I have the 23 spline A833 out of a 68 RR. I’m a real novice when it comes to anything transmission related. Firstly flywheel sizing. If I want to replace the flywheel because of hot spots can an 11” flywheel fit on a car that came with the 10.4” or whatever it was. Does that make a difference? I’m assuming mine is the smaller size. Next, are there multiple size pressure plates and clutches depending on flywheel size or is it just based on 23 vs 18 spline shafts? Not a clue here. Thanks for all the help in advance.

-Steve

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moparedtn said:

All things being equal, the 11" setup gives more surface gripping area than the 10.5"
so it would have higher holding strength, i.e. be rated for more hp/tq.
That's part of why the 10.95" clutch deal makes sense on the 10.5" flywheel if it works
with it, for example.
Same sort of deal as with brakes - the more "swept area", the more holding power.

Biggest advice I can give someone with a stock clutch setup is to get that dang flywheel
sorted out! Get the one you have checked and resurfaced if it has the metal left in it to
stay within tolerance!
The guy I paid to install my 18 spline 4 speed, along with new Ram B&B clutch, did NOT
feel the need to get the flywheel resurfaced (and it was a new 11" heavy-assed factory unit,
so it would have turned just fine at the machine shop).
As a result, I deal with a chattery clutch on take-offs now. DAMMIT.

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Steve009 said:

....If I want to replace the flywheel because of hot spots can an 11” flywheel fit on a car that came with the 10.4” or whatever it was....

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Daves69 said:

FWIW, When one mentions "11" flywheel" I relate that to the 143 tooth fly wheel, not the 130. Not interchangeable with the same bell due to physical diameter and starter boss locations.
Even some "scalloped 11" or "10.95" clutch sets, which fit the 130 tooth wheel, can be too tall for some older bells. So you should really determine exactly what you have presently.

Some on the "10.95" / scalloped" from MP....
View attachment 973174

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moparedtn said:

All things being equal, the 11" setup gives more surface gripping area than the 10.5"
so it would have higher holding strength, i.e. be rated for more hp/tq.
That's part of why the 10.95" clutch deal makes sense on the 10.5" flywheel if it works
with it, for example.
Same sort of deal as with brakes - the more "swept area", the more holding power.

Biggest advice I can give someone with a stock clutch setup is to get that dang flywheel
sorted out! Get the one you have checked and resurfaced if it has the metal left in it to
stay within tolerance!
The guy I paid to install my 18 spline 4 speed, along with new Ram B&B clutch, did NOT
feel the need to get the flywheel resurfaced (and it was a new 11" heavy-assed factory unit,
so it would have turned just fine at the machine shop).
As a result, I deal with a chattery clutch on take-offs now. DAMMIT.

Click to expand...

493 Mike said:

Have you tried stationary clutch engagement (against a stationary object -tree for example)? I have found in some cases a little burning will eliminate the chatter. You don't have much to lose at this point.
Mike

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Daves69 said:

FWIW, When one mentions "11" flywheel" I relate that to the 143 tooth fly wheel, not the 130. Not interchangeable with the same bell due to physical diameter and starter boss locations.
Even some "scalloped 11" or "10.95" clutch sets, which fit the 130 tooth wheel, can be too tall for some older bells. So you should really determine exactly what you have presently.

Some on the "10.95" / scalloped" from MP....
View attachment 973174

Click to expand...