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Old 01-10-2012, 02:34 PM   #1
First66
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'66 Lug Nut Size

Just want to make sure before I buy. The correct thread for a 66 crossmember is 7/1620 RH, Right?
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Old 01-10-2012, 02:36 PM   #2
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Re: '66 Lug Nut Size

yep
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Old 01-10-2012, 02:39 PM   #3
markeb01
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Re: '66 Lug Nut Size

Yes 7/16-20 RH if the stock studs remain in place.

http://www.oreillyauto.com/site/c/de...2988&ppt=C0337
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Old 01-10-2012, 02:43 PM   #4
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Re: '66 Lug Nut Size

Tenks!
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Old 08-13-2016, 11:56 PM   #5
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Re: '66 Lug Nut Size

This would also be for 60-66 C10's?
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Old 08-14-2016, 10:25 AM   #6
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Re: '66 Lug Nut Size

Yes, and that size also works for the DIY 3 point seat belt mod.
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Old 04-14-2018, 08:42 PM   #7
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Re: '66 Lug Nut Size

How about the stud length?
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