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Weird Differential Tag

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Old May 14, 2018 | 07:34 PM
  #1  
GiggityBurns's Avatar
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Question Weird Differential Tag

I looked up axle code 35 and it shows I have 4:10 gears. But I want to know if I have the Ford 8.8, Sterling, Dana, etc. I know I have full floating axles. When I took off the diff tag while changing gear oil, I saw what appeared to be "V129C" and "10 10 2 0E21". Can anyone tell me what the "10 10 2 0E21" means?

 
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Old May 14, 2018 | 07:47 PM
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Most likely a sterling,definitely not a an 8,8.
 
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Old May 14, 2018 | 09:39 PM
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If the axle in question is the one out of the truck listed at the bottom of your post it would be a 10.25, that is what is in my 1989 f250. Also if it is the stock axle the code should be on your drivers side door post, also known as the "b" pillar. Look where it says axle code and then google the number and you will find out just what you have.
 

Last edited by wharthog; May 14, 2018 at 09:42 PM. Reason: more info
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Old May 15, 2018 | 12:02 AM
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The bottom should be 4 10 10 2, the 4 is smeared from the bolt. 4 10 is the ratio. 10 2 is the ring gear size. What follows is the date code. If it had a limited slip it would be 4L10 Ford Rear Axle Assembly Identification - Page 17 - FORDification.com
 
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Old May 15, 2018 | 07:39 PM
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Originally Posted by GiggityBurns
I looked up axle code 35 and it shows I have 4:10 gears. I have the Sterling.

When I took off the diff tag while changing gear oil, I saw what appeared to be 410 10 2 V129C 0E21
4.10-1

10 2 = 10.25."

V129-C = Ford/Sterling WDD 10.25" Rear Axle / 4.10-1 / No Limited Slip / 6,250 lbs. Rear Axle Capacity.

0E21 = Assembled May (E) 21, 1990 (0).
 
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