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Old Apr 9, 2007 | 01:17 PM
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Bolt size?

could anyone point me in the direction where I could find the bolt size that bolts my clutch to the flywheel on a 77 351m 12 5/8 bolt circle. it has a np435 4 speed behind it.
 
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Old Apr 10, 2007 | 11:38 PM
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Not that this is very much help but! Ford used 2 different ones 1" ford flywheel & 3/4" long for auto flex plate..Sorry that as good as it gets from my book about it.
 
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Old Apr 11, 2007 | 05:37 AM
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They are a special bolt and only available through a dealer.
There is a shoulder that must be used and aftermarket bolts do not have it.
 
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Old Apr 11, 2007 | 06:04 AM
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Originally Posted by terran05
could anyone point me in the direction where I could find the bolt size that bolts my clutch to the flywheel on a 77 351m 12 5/8 bolt circle. it has a np435 4 speed behind it.
Special 351M Bolt (Note: 400 is different) Ford Part Number:

6-355705-S .. Bolt, Pressure Plate to Flywheel 3/8" -16 x 31/32"

Don't forget the lockwashers.
 

Last edited by NumberDummy; Apr 11, 2007 at 06:07 AM.
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Old Apr 11, 2007 | 12:20 PM
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Thanxs guys. where can I get those? does it have to be a dealer or can I get them from a fastener place? its the only thing holding it back from being drivable, its driving me nuts I need a mud truck!!!!
 
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Old Apr 11, 2007 | 12:22 PM
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That is the actual Ford part number I posted, so a Ford and/or Lincoln-Mercury dealer will be your only recourse.
 
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Old Apr 11, 2007 | 02:04 PM
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There are also aftermarket alternatives. The real auto parts store around here had a set of Mr. Gasket pressure plate bolts and lock washers (Part # 910) for me when I was trying to get my manual trans swap finished on a Sunday afternoon. I think they are listed on the package as Chevy bolts but they are the right grade, length and thread. I originally bought a package of ARP pressure plate bolts listed on the package as being for Ford but they were 5/16-18 and did not fit my application.

ARP also makes them and they can usually be found in your local speed shop. Be sure to get the right size and thread.
 
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