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Old 03-16-2019, 07:52 AM   #1
terry b
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WTB carriage bolt pn# 3898396.

Looking for the 1/2" x8" carriage bolt that holds the tire to the in the bed spare tire carrier in the bed of my 1972 C-20. Would also like the nut and keyed lock that goes on it. Prefer OEM/NOS. But beggers can't be choosers. Thanks.
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Old 03-16-2019, 12:21 PM   #2
35boulder
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Re: WTB carriage bolt pn# 3898396.

If you do a search, you will find that a guy over on the blazer board hade some made up for sale. They are just like the originals.
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Old 03-16-2019, 06:34 PM   #3
terry b
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Re: WTB carriage bolt pn# 3898396.

Still looking. Needs to be for 3/4 ton. Bolt is half inch diameter twenty threads per inch and eight inches long. The thread pitch matches the wheel stud. You cannot buy it in a hardware store. Thanks for your help.

Last edited by terry b; 03-16-2019 at 07:22 PM. Reason: More info
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Old 03-16-2019, 07:30 PM   #4
Getter-Done
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Re: WTB carriage bolt pn# 3898396.

I found this.
It is 9/16 threads though.
https://www.oldsobsolete.com/product...lt-nos-325485/
Your lugs are 1/2 ?


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Old 03-16-2019, 08:09 PM   #5
terry b
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Re: WTB carriage bolt pn# 3898396.

Sure looks like it would work. The research i have done shows 1/2 20. But I think you my be right the studs on my truck my be 9/16. Going to check.
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