Bolt pattern from a 10\" and a 10,5\" clutch - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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Old 12-02-2005, 03:18 PM   #1 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

I would like to change to a centerforce 10,5" clutch.
Actually I have a 10" three arms clutch.
The flywheel is a fidanza steel 157 tooth behind a 5.0 HO 331 Strokerengine.
Do the 10,5" have the same boltpattern as the 10" and are there some other things I have to look at?

Thank you
Hans
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Old 12-02-2005, 07:36 PM   #2 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

I went from a 10" stock clutch on a 157 tooth flywheel, to a 10.5" Ram three fingered clutch with no mods, the bolt pattern was the same, so you should be able to do the same.
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Old 12-02-2005, 07:38 PM   #3 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

If my memory serve me right the 10" and 10.5" flywheels are different. I think one is smaller than the other one. I have both in my garage but i won't be home for a while. I know the bolts for the 10.5 clutch are metric b/c I made the mistake of putting the bolts out of my old clutch which were standard and they stripped the threads. Also the 10 (or long stlye) clutch uses bolts that have shoulders on them. The 10.5 bolts are threaded all the way to the top.
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Old 12-02-2005, 07:54 PM   #4 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

The 157 tooth flywheel came from the factory with a 10" clutch disc and pressure plate, except in some cases where a heavy duty upgrade was ordered, and a 10.5" disc and pressure plate were installed, the bolt pattern is the same. I ordered my Ram clutch from Summit and went with the 10.5" parts and they bolted to the 157 tooth flywheel where a 10" disc once lived because I did not want to have to go with the 11" 164 tooth flywheel and change my bellhousing. It can be done.
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Old 12-06-2005, 04:18 PM   #5 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

How do you get a 10.5 inch clutch on a 10inch flywheel??
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Old 12-06-2005, 05:02 PM   #6 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

The flywheel isn't actually 10" in diameter, and there is room for the 10.5" clutch set.
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Old 12-06-2005, 06:30 PM   #7 (permalink)
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Bolt pattern from a 10\" and a 10,5\" clutch

Why not get a 10.5 inch flywheel from an '86-95 5.0?
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