flywheel bolts?

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hucklburry
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flywheel bolts?

Post #1 by hucklburry » Fri Feb 16, 2018 10:12 am

So I have a 76DA, had a flexplate on it, I am installing a new flywheel - zero balance etc, and need to get the correct new flywheel bolts.

It looks like I should get 7/16-20 x .9" long, I found that at Napa, anyone know if that is correct?

An internet search shows some in the .9xx" long range for a US250, I just want to get the correct ones.

Also, its been awhile since I've replaced a flywheel, and I didn't take off any washers, that is correct, no washers, right?

Thank you!

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bubba22349
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Re: flywheel bolts?

Post #2 by bubba22349 » Sun Feb 18, 2018 10:56 am

hucklburry wrote:So I have a 76DA, had a flexplate on it, I am installing a new flywheel - zero balance etc, and need to get the correct new flywheel bolts.

It looks like I should get 7/16-20 x .9" long, I found that at Napa, anyone know if that is correct?

An internet search shows some in the .9xx" long range for a US250, I just want to get the correct ones.

Also, its been awhile since I've replaced a flywheel, and I didn't take off any washers, that is correct, no washers, right?

Thank you!


Yes correct 7/16-20 by 31/32 these are used on the US 250 six, 289, 302, 351, V8's too. Yes you are correct no washers are used, you can used some locktite though on the threads if you want. Below is a set of the correct bolts in the ARP versions for your referance. Good luck :thumbup: :nod:

https://www.cjponyparts.com/arp-flywhee ... gKaGPD_BwE
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

hucklburry
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Re: flywheel bolts?

Post #3 by hucklburry » Tue Feb 20, 2018 12:30 pm

Thanks Bubba!

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wsa111
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Re: flywheel bolts?

Post #4 by wsa111 » Wed Feb 21, 2018 10:34 pm

X2, the flywheel bolts or flexplate bolts are exposed to oil from the rear main. They need to be sealed or you will be blessed with an oil leak from that area.
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hucklburry
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Re: flywheel bolts?

Post #5 by hucklburry » Mon Mar 05, 2018 8:28 am

yes I'll seal em up.

Does this clutch need dowel pins? I don't think one came with the clutch or flywheel....

hucklburry
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Re: flywheel bolts?

Post #6 by hucklburry » Wed Mar 14, 2018 11:10 am

I found my flywheel did come with dowels, and I found later bolts are all threaded and need the dowels, there are bolts that are shouldered that don't need dowels, could be wrong, but I got it now.

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