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Old 11-25-2025, 07:12 PM   #1
County
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Join Date: Jun 2016
Location: Apache, OK
Posts: 50
Verify axle code for me please?

I did a ton of searching, but axle codes are all over the place for truck/car, etc. Verify my findings?

truck 12 bolt. Passenger side tube reads THA W012 1 after hitting it with a wire wheel.

I THINK this is a 1971 12 bolt, 3.07 gears, non-posi. Is that correct?

Lower drivers rear on pumpkin rib has A 81.
Also has NF 3896838 (last digit may be 6?) raised on the carrier as well.

Thank you!
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Old 11-25-2025, 09:14 PM   #2
LockDoc
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Re: Verify axle code for me please?

Quote:
Originally Posted by County View Post
I did a ton of searching, but axle codes are all over the place for truck/car, etc. Verify my findings?

truck 12 bolt. Passenger side tube reads THA W012 1 after hitting it with a wire wheel.

I THINK this is a 1971 12 bolt, 3.07 gears, non-posi. Is that correct?

Lower drivers rear on pumpkin rib has A 81.
Also has NF 3896838 (last digit may be 6?) raised on the carrier as well.

Thank you!

Yes, that would be correct. C10

Here are some codes I posted on here a few years ago.

https://67-72chevytrucks.com/vboard/...d.php?t=578793
.
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Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

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Old 11-25-2025, 11:50 PM   #3
County
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Posts: 50
Re: Verify axle code for me please?

Thank you!
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Old 11-28-2025, 04:32 PM   #4
LockDoc
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Re: Verify axle code for me please?

Quote:
Originally Posted by County View Post
Thank you!
No problem....
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Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

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