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#83892 10/08/2007 1:19 AM | Joined: Apr 2004 Posts: 375 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2004 Posts: 375 | Ok guys/gals. I just spent the weekend putting my 235 back together only to find that the NOS flywheel I bought isn't the same as the one I took out. Funny thing is that they both have the same part number on them but one is 10" and the new one is 11". My new 10" clutch disk and pressure plate will not bolt up.
My question to you is this: If I buy a 11" disk and pressure plate, will it work in my bellhousing and with my clutch fork? The engine is a 62 passenger car and the belhousing is for a 57 pickup. The pickup had an optional 11" clutch I believe.
Thanks for you help. | | |
#83893 10/08/2007 1:26 AM | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | If I remember the 11" clutch pressure plate has 9 bolts that hold it on.
Does that help any?
Grigg | | |
#83894 10/08/2007 1:30 AM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Jerry,
I will hazard a guess. All the bellhousings are the same from a size standpoint, as well as the shift fork, so any clutch pressure plate combo you find will physically fit inside. Why your flywheel isn't drilled for your pressure plate I don't know.
Stuart | | |
#83895 10/08/2007 6:07 AM | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy Jerry A, As atomarc said all the bellhousings are the same, I have a 13" clutch in my stock 57 bellhousing, using all the stock components. Grigg 11" clutches come in both six and nine bolt patterns, hope that helps. | | |
#83896 10/08/2007 12:05 PM | Joined: Apr 2004 Posts: 375 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2004 Posts: 375 | How is the 11" clutch going to change driveability? | | |
#83897 10/08/2007 2:03 PM | Joined: Apr 2005 Posts: 275 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 275 | You could have the flywheel re-drilled with a 10" pattern & use your existing clutch. | | |
#83898 10/08/2007 2:26 PM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Jerry,
The clutch and pressure plate, being a friction coupling, would want more surface area for a heavy truck or HD pickup. This is why they built larger combinations. There would be no noticeable difference to the operator in driveability regardless of size. This is how I understand it.
Stuart | | |
#83899 10/08/2007 2:46 PM | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | There is a slight decrease in driveability with the larger clutch because of it's rotating mass.
A small lighter clutch disc will slow down faster and allow you to shift faster, more car like.
Probably very minimal, but there is theoretically a difference.
The larger clutch will be harder on synchronizers if you are not good at matching speeds and just jam it into gear hoping the synchronizers will do the work for you.
I have the 11" one in my truck, and have no problems with it, I'll even say I would not use the smaller one if I was given one for free.
Grigg | | |
#83900 10/08/2007 3:10 PM | Joined: Apr 2007 Posts: 48 'Bolter | | 'Bolter Joined: Apr 2007 Posts: 48 | Hi Jerry, The 11" clutch Disc may be to large for your pressure plate; I used the 85 Camaro disc with my T5 trans(14 spline)and it works fine. Oldred | | |
#83901 10/08/2007 3:15 PM | Joined: Apr 2004 Posts: 375 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2004 Posts: 375 | Thanks everyone. I just ordered a new pressure plate and clutch disk from NAPA. | | |
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