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Flex Plate ID

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PHAT69AMX View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PHAT69AMX Quote  Post ReplyReply Direct Link To This Post Posted: Jan/19/2018 at 10:05pm
This is what I had saved / handy, hope it helps, (typo in 2nd image) "401" at bottom right


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SC397 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/25/2018 at 2:16pm
I added more information of flywheels and flex plates over here. included pictures of the Jeep Nailhead TH400 flex plate and factory adapter kit.

http://rebsamcandjeep.proboards.com/thread/585/amc-290-401-flywheels-flexplates?page=1&scrollTo=8862

Here is some Full Size Jeep Transmission info.
http://www.ifsja.org/forums/vb/showthread.php?p=1684230#post1684230

Edited by SC397 - Feb/19/2018 at 9:15pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bandana Quote  Post ReplyReply Direct Link To This Post Posted: Feb/16/2018 at 10:43am
Have a question that may or not be applicable to this thread. Everything in this thread is about the flex plates for the various automatic transmissions. Is there as much variability in the flywheels for the manual cars. Say for example, are all of the T10 flywheels the same or do they differ by year / engine??
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 401MATCOUPE Quote  Post ReplyReply Direct Link To This Post Posted: Feb/16/2018 at 10:47am
They are all different like the flexplates.
Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar)
68X,GoPac,390,4sp,52A
69X,GoPac,390,4sp,64A
70X,GoPac,390,4sp,87A,8
70X,GoPac,390,4sp,BBO,8
70 Jav SST,390,AT,BSO
74MatX,401,AT,Prototype
74MatX,401,AT
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tufcj Quote  Post ReplyReply Direct Link To This Post Posted: Feb/16/2018 at 10:49am
Originally posted by Bandana Bandana wrote:

Have a question that may or not be applicable to this thread. Everything in this thread is about the flex plates for the various automatic transmissions. Is there as much variability in the flywheels for the manual cars. Say for example, are all of the T10 flywheels the same or do they differ by year / engine??


Since all AMC V-8s are externally balanced, all flywheels are unique to displacement.  A 304 is different from a 360 which is different from a 401.  The crankshaft also changed in 1972, so a pre-72 flywheel is different from a 72-up.

Bob
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Feb/16/2018 at 11:08am
Originally posted by Bandana Bandana wrote:

Have a question that may or not be applicable to this thread. Everything in this thread is about the flex plates for the various automatic transmissions. Is there as much variability in the flywheels for the manual cars. Say for example, are all of the T10 flywheels the same or do they differ by year / engine??


Flywheels are listed here as well:

http://rebsamcandjeep.proboards.com/thread/585/amc-290-401-flywheels-flexplates
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bandana Quote  Post ReplyReply Direct Link To This Post Posted: Feb/19/2018 at 10:59am
Great info on the link showing the various flywheels. I need to make sure I get the date code for my block so I know which to get  (if needed). Assuming the crank is the same year? Thanks guys!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote knobbler Quote  Post ReplyReply Direct Link To This Post Posted: Mar/08/2018 at 12:16am
I've got one here that I figure is a 258/242 flexplate, but it's different from my others in that it has two groups of smaller, oblong holes (4 and 2 in each respective group). It matches up in every other respect, so I'm curious as to whether anyone may know what configuration used this.



Here it is stacked on top of my Gremlin's old flexplate that was cracked to heck.

Any ideas? Ideally, I'd like to be able to use it as a backup for my Eagle with an A998, but just knowing what it went to would be cool.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/31/2018 at 7:42pm
I had one like that.  I believe that it is for the 258.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote md1970jav Quote  Post ReplyReply Direct Link To This Post Posted: Apr/01/2018 at 4:04am
I bought a parts interchange book on Ebay , if you have a part # this book will tell you what it's for and the years it will work on. My flywheel ended up being for one year and one motor and transmission. So yeah it's very important to be sure you have the right one. Hope this helps a little
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