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Differences- Standard Flywheels Flat/Later cranks |
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j2sax 
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Joined: Sep/29/2010 Location: SW MO Status: Offline Points: 104 |
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 Topic: Differences- Standard Flywheels Flat/Later cranksPosted: Dec/03/2014 at 12:19pm |
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So I was pretty sure I used a flywheel (NOT auto flexplate) from a 79 360 on a 70 Model 360 long ago.
Do I have to use an early manual flywheel from a flat tail crank with an early 304 or is it OK to use a later flywheel, or I am only dreamin? In case that does not work out, does anyone have an early 304 flywheel they are selling? Jesse
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j2sax@yahoo.com
Plenty of FSJ's Eagles and other AMC's near Springfield, MO |
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carnuck
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Joined: Mar/31/2010 Location: Seattle Status: Offline Points: 3942 |
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Posted: Dec/03/2014 at 12:28pm |
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That motor must've had the ridged flange or the flywheel had the right step in the back to fit it, otherwise the vehicle is a rolling shear your legs off bomb waiting to happen! Setups like that are the reason for bellhousing scatter shields!
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amc67rogue
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Posted: Dec/03/2014 at 2:57pm |
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The early flywheel locate on the OD of the flat flange cranks , the OD is 4.500 . The later flywheels locate on the OD of the ring for the Torqueflite convertor on the back of the flange. The OD of the flange of the later cranks is 4.510 . The ID of the later flywheels is 4.625.
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Keith Coggins 67Rogue X code
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carnuck
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Posted: Dec/03/2014 at 3:14pm |
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So you have .625 area of possible slop. YIKES!
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amc67rogue
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Posted: Dec/03/2014 at 3:25pm |
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Keith Coggins 67Rogue X code
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carnuck
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Posted: Dec/03/2014 at 3:27pm |
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Doh! Misread that! Still scary 1/8" movement can make things go squirrelly in a hurry!
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j2sax
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Posted: Dec/03/2014 at 6:12pm |
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Guess it was good that this was a work truck J10.... rarely saw the high side of 3500!
Thank you for the precise feedback! Happy Holidays! Jesse
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j2sax@yahoo.com
Plenty of FSJ's Eagles and other AMC's near Springfield, MO |
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farna
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Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19676 |
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Posted: Dec/04/2014 at 7:23am |
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A machine shop could easily make a spacer ring to fill the gap, but it's not terribly difficult to locate the correct flywheel.
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Frank Swygert
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carnuck wrote: