bigger clutch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jayrau · 11-03-2003, 04:52 PM

I have a manual 4 speed transmission in my '72 4x4 swb, with a chevy 350 motor. I've gone through two clutches in this truck and am about to replace a third one. My question is can I install a bigger clutch, and if I did, will it wear longer than the standard 10" clutch?

bpmcgee · 11-03-2003, 04:57 PM

Jay,

I don't have an answer for you, but I DO have information.

Both the 10 and the 11 inch clutch for our vehicles use the same flywheel. I'm not sure if there are different machinings for the bolts, but I don't believe there are. This would mean that you ought to be able to use the 10 or the 11 inch interchangeably, assuming the number of splines on the input shaft is the same.

Brian

crazy longhorn · 11-03-2003, 05:03 PM

I never had good luck with stock clutches(leadfoot!) You can run a 12 " clutch on the 11" flywheel setup( same bolt pattern).The bigger clutch sould hold up better, but if you do offroading , you might look into the Centerforce clutches. They arent cheap, but for the money spent, I am very happy with mine. good luck,crazyL

crazy longhorn · 11-03-2003, 05:09 PM

11&12" clutches will bolt to the same flywheel.....the 10" clutch setup has the same dia flywheel, but the bolt pattern is different fot the clutch "hat"(pressureplate). The overall OD measure on the flywheel is 14"(168 tooth ring). Good luck, crazyL

palallin · 11-03-2003, 06:19 PM

I've had lots of good luck with my B & B 3-finger 12" clutch.

jayrau · 11-10-2003, 06:59 PM

I'm looking a installing a centerforce dual friction clutch, saving up the clams to pay for it.

dubie · 11-10-2003, 07:03 PM

Quote:

the 10" clutch setup has the same dia flywheel, but the bolt pattern is different fot the clutch "hat"(pressureplate).

I found that out this weekend when the parts depot sold me an 11" clutch when I ordered a 10" The bolt holes are 7/8" farther apart on the 11"

crazy longhorn · 11-10-2003, 07:10 PM

the Center force is worth the bucks

check the smile

crazyL

11-03-2003, 04:52 PM	#1
jayrau Registered User Join Date: Jan 2000 Location: White Salmon, WA Posts: 33	bigger clutch I have a manual 4 speed transmission in my '72 4x4 swb, with a chevy 350 motor. I've gone through two clutches in this truck and am about to replace a third one. My question is can I install a bigger clutch, and if I did, will it wear longer than the standard 10" clutch?

11-03-2003, 05:03 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	I never had good luck with stock clutches(leadfoot!) You can run a 12 " clutch on the 11" flywheel setup( same bolt pattern).The bigger clutch sould hold up better, but if you do offroading , you might look into the Centerforce clutches. They arent cheap, but for the money spent, I am very happy with mine. good luck,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-03-2003, 05:09 PM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	11&12" clutches will bolt to the same flywheel.....the 10" clutch setup has the same dia flywheel, but the bolt pattern is different fot the clutch "hat"(pressureplate). The overall OD measure on the flywheel is 14"(168 tooth ring). Good luck, crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-03-2003, 06:19 PM	#5
palallin Registered User Join Date: Jul 2002 Location: St. James, MO Posts: 1,238	I've had lots of good luck with my B & B 3-finger 12" clutch. __________________ '69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt.

11-10-2003, 07:10 PM	#8
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	the Center force is worth the bucks check the smile crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-03-2003, 04:57 PM	#2
bpmcgee Registered User Join Date: Mar 2003 Location: Northern Illinois Posts: 2,181	Jay, I don't have an answer for you, but I DO have information. Both the 10 and the 11 inch clutch for our vehicles use the same flywheel. I'm not sure if there are different machinings for the bolts, but I don't believe there are. This would mean that you ought to be able to use the 10 or the 11 inch interchangeably, assuming the number of splines on the input shaft is the same. Brian

11-10-2003, 06:59 PM	#6
jayrau Registered User Join Date: Jan 2000 Location: White Salmon, WA Posts: 33	I'm looking a installing a centerforce dual friction clutch, saving up the clams to pay for it.



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