Clutch Fork Geometry Woes...

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eekvonzipper

eekvonzipper

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'65 Barracuda 273 with 9 1/2" Bellhousing 2465523.
I put one of the 3 Finger Borg and Beck Style Clutch from Brewers in... (CP 10 I Think)
I have a '65 10 1/2" Fork which I think is Correct???
The Provided T.O. Bearing sits back too far and forces the Fork All-The-Way-Forward on the Outside. Is it possible that I just have the wrong Pivot inside?
Wrong T.O. Bearing? Please Advise.
Thanks To All
-eric

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It was supposed to be a Stock Upgrade for this Bell. It's only a Half inch bigger than the one that came out and came with special bolts to use with the Stock Flywheel.
 
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1/2 inch bigger in diameter? or taller?

All I know is what I have heard and that is that 9.5 parts do not interchange with 10.5 parts.
Looking at your parts tho, I see a very tall fork pivot. It would seem that a shorter one might work. Or, probably idealy, a shorter release bearing, BUT, probably NOT with that fork. IMO, you just need the bigger BH.
I have never done your swap so hang tuff, someone who has may be along soon.

BTW; nice camera-work.

Butyou know, the more I look at it, I'm starting to suspect that the 10.5 fork is not seating on the pivot properly. If you have a 9.5 fork try it, I bet it slides right into position.

BTW;
Once you have the right parts, the Fork should rest between the forward-most edge of the window, and the half-way point; and end (clutch depressed) about halfway between the rearmost edge and the half-way point. It can rest closer to the front edge, because as the disc wears, the clutch will naturally move to the rear.
 
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eekvonzipper said:
It was supposed to be a Stock Upgrade for this Bell. It's only a Half inch bigger than the one that came out and came with special bolts to use with the Stock Flywheel.
So, it's the Wrong Clutch then???
Click to expand...
Didn't I get this clutch from you Don? @65 Dartman after Brewers Sold Out of them?
It was for this Set-Up or am I mistaken? (273 to 9 1/2" Bell to A833)
 
AJ/FormS said:
1/2 inch bigger in diameter? or taller?

All I know is what I have heard and that is that 9.5 parts do not interchange with 10.5 parts.
Looking at your parts tho, I see a very tall fork pivot. It would seem that a shorter one might work. Or, probably idealy, a shorter release bearing, BUT, probably NOT with that fork. IMO, you just need the bigger BH.
I have never done your swap so hang tuff, someone who has may be along soon.
Click to expand...
Crap! and I threw away the old one as soon as it came out so I can't compare them...
 
Here is somechit I found; maybe helpful/maybe not, IDK

Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists
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Product ID: CF485
CF485 CLUTCH FORK 63-66 A-BODY
CF485.jpg

Reconditioned small block/slant 6 1963-66 A-body clutch fork (used with 9.5" bell housings with cast numbers 2463027 2465523 2468433 2468481) overall length 10 1/2".
(see CF702 clutch fork and FP484 fork pivot for converting 1963-66 A-body cars to 10.5" bellhousing).

CF702_small.jpg

Product ID: CF702
CF702 CLUTCH FORK 1966-UP B/E & 1967-69 A BIG BLOCK/1970-4 E/1971-4 B SM/BIG BLOCK-NEW
New clutch fork, fits 1966-up B/E-body and 1967-69 A-body big block applications, and 1970-74 E-body/1971-74 B-body small & big blocks
(also used with FP484 fork pivot when converting 1963-66 A-body cars to 10.5" bellhousing). 10 7/8" overall length. Reference Chrysler part # 2643702

FP484.jpg

Product ID: FP484
FP484 CLUTCH FORK PIVOT 63-6 A-BODY
Details

Clutch fork pivot bracket for 1963-66 small block bellhousings with casting numbers 2463027, 2465523, 2468433, also for 10.5" bellhousings 2843887, 2892482 and 3515734 when used with our 10.5" conversion torque shaft kit in 1963-66 A-body cars.


CF702_small.jpg
 
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I believe I have these same Pivot and Fork already...
I checked the Old 3-Speed Stuff that came out of the other BellHouse and they look the same...
 
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What is a Scalloped Pressure Plate exactly?
Does This One look like it is scalloped?
Looks to have plenty of room in there...
Can I just modify my ClutchFork to work?
Really wanna Fire this thing!

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Scalloped means the pressure plate bolt holes are recessed into the diameter of the plate, so they will still fit the 9.5" flywheel and be able to accept a larger clutch disc.
 
eekvonzipper said:
What is a Scalloped Pressure Plate exactly?
Does This One look like it is scalloped?
Looks to have plenty of room in there...
Can I just modify my ClutchFork to work?
Really wanna Fire this thing!
Click to expand...

View attachment 1715937995

Is this a pic of the thing bolted onto the flywheel? If yes then, Those fingers look way too high.
Are those spacers under the bolts in the right spot?
Are you using the disc that the PP calls for?
Is the disk installed with the correct side to the flywheel?
Actually the more I look at this, I gotta think is that flywheel bolted directly to the crank of a stock SBM? Does the starter line up OK with the ring gear?

Really wanna Fire this thing!
Click to expand...
I just bet you do, lol.
 
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AJ/FormS said:
View attachment 1715937995

Is this a pic of the thing bolted onto the flywheel? If yes then, Those fingers look way too high.
Are those spacers under the bolts in the right spot?
Are you using the disc that the PP calls for?
Is the disk installed with the correct side to the flywheel?
Actually the more I look at this, I gotta think is that flywheel bolted directly to the crank of a stock SBM? Does the starter line up OK with the ring gear?


I just bet you do, lol.
Click to expand...
Yes, the Flywheel is bolted directly to the crank of a SBM.
Those are not spacers, that is the special supplied bolt that comes with a Scalloped Pressure Plate. I made sure the SpringPack side of the Disk is Out away from the Flywheel. Starter went in fine.
This Brewer CP10 Clutch is supposed to be a direct replacement for a 9 1/2" Stock Clutch... I don't know why this is happening
 
This may help on your installed finger height to know where you're at. I just use a flat disc bolted between the PP and FW to verify 1.700" with a dept mic. 5/16" flat stock lengths or key stock may work as well.

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I believe most bells are 7.380", although I'm not sure on a 9-1/2".
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That would leave release bearing, pivot, and fork to work with.
 
Lol, No whoops here!
eekvonzipper said:
How do you measure from the Flywheel with the Clutch Disk in the way?
Click to expand...
It's measured to the standard (red) which is .310" (disc thickness), not to the flywheel.

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This is the plate I use to simulate the disc..........
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I believe one could position flat stock to do the same.
 
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