Need help please, 12" clutch on 67 or 11"??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

steveo3318 · 06-11-2014, 10:44 PM

Ok guys heres the deal. I have my motor out stroking it to a 383. I figured I would replace the clutch since I had to buy a externally balanced 400 flywheel from Ram.

So heres what happened and my question. My new clutch came in today and everywhere I have checked says its correct for my truck. Heres the question. My old clutch was an 11". I didn't realize this until today when comparing them. I feel like I have the truck bellhousing but don't know how to make sure without pulling it off the trans. Pretty sure the pilot hole is the larger 5 1/8 or so. Can anyone tell me if a 12 inch clutch will work????

**LockDoc** · 06-11-2014, 11:00 PM

Quote:

Originally Posted by steveo3318

Ok guys heres the deal. I have my motor out stroking it to a 383. I figured I would replace the clutch since I had to buy a externally balanced 400 flywheel from Ram.

So heres what happened and my question. My new clutch came in today and everywhere I have checked says its correct for my truck. Heres the question. My old clutch was an 11". I didn't realize this until today when comparing them. I feel like I have the truck bellhousing but don't know how to make sure without pulling it off the trans. Pretty sure the pilot hole is the larger 5 1/8 or so. Can anyone tell me if a 12 inch clutch will work????

If the new pressure plate will bolt up to the flywheel it will work.

LockDoc

steveo3318 · 06-11-2014, 11:01 PM

Yeah that bolts right up. What I am worried about is it hitting the bellhousing!!!!

**LockDoc** · 06-11-2014, 11:06 PM

Quote:

Originally Posted by steveo3318

Yeah that bolts right up. What I am worried about is it hitting the bellhousing!!!!

I guess you will have to bolt the bell housing up and see. I wouldn't think it would hit.

LockDoc

steveo3318 · 06-11-2014, 11:07 PM

Kinda what I am thinking as well. It all looks and measures out almost exact except the 12 is a touch thicker. Thanks for the quick response

**LockDoc** · 06-11-2014, 11:54 PM

Quote:

Originally Posted by steveo3318

Kinda what I am thinking as well. It all looks and measures out almost exact except the 12 is a touch thicker. Thanks for the quick response

No problem, let us know how you come out on it for future reference.

LockDoc

06-11-2014, 10:44 PM	#1
steveo3318 Registered User Join Date: Apr 2014 Location: Sumrall, MS Posts: 381	Need help please, 12" clutch on 67 or 11"??? Ok guys heres the deal. I have my motor out stroking it to a 383. I figured I would replace the clutch since I had to buy a externally balanced 400 flywheel from Ram. So heres what happened and my question. My new clutch came in today and everywhere I have checked says its correct for my truck. Heres the question. My old clutch was an 11". I didn't realize this until today when comparing them. I feel like I have the truck bellhousing but don't know how to make sure without pulling it off the trans. Pretty sure the pilot hole is the larger 5 1/8 or so. Can anyone tell me if a 12 inch clutch will work????

06-11-2014, 11:01 PM	#3
steveo3318 Registered User Join Date: Apr 2014 Location: Sumrall, MS Posts: 381	Re: Need help please, 12" clutch on 67 or 11"??? Yeah that bolts right up. What I am worried about is it hitting the bellhousing!!!!

06-11-2014, 11:07 PM	#5
steveo3318 Registered User Join Date: Apr 2014 Location: Sumrall, MS Posts: 381	Re: Need help please, 12" clutch on 67 or 11"??? Kinda what I am thinking as well. It all looks and measures out almost exact except the 12 is a touch thicker. Thanks for the quick response



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