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  #1  
Old 07-17-2010, 01:33 PM
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Rear End

How do I determine what kind of rear end I have? I have an 02 f250 4 door 4wd.
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Old 07-17-2010, 01:34 PM
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10.5 rear end
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Old 07-17-2010, 01:47 PM
shaking things up

 

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look for the tag on the back cover it will be on one of the bolts
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Old 07-18-2010, 05:00 AM
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Mine had two tags, the tag on the drivers side is the "use synthetic lube" tag and the tag on the passenger side tells the rear end info, gear ratio etc.
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Old 07-18-2010, 06:02 AM
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Ok found the tag, the numbers are as follows: 731052f12 I also found a rear end near me for sale the numbers are 731050813 does anyone know if they are compatible the replacement rear end came out of a 2000 f250 lwb mine is 2002 lwb. Is there anything else I need to consider for the change like the front 4wd gearing i heard if you don't match them when your in 4wd you will have a problem. One more thing on the id tag on the truck it shows a C1 Axel. Don't know if that helps Thanks for the help guys.
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Old 07-18-2010, 06:38 AM
Other vehicle is an F250
 

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Quote:
Originally Posted by melmount View Post
10.5 rear end
I agree with Melmount...10.5" Sterling
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Old 07-18-2010, 06:43 AM
Other vehicle is an F250
 

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Found this................

Ford Rear Axle Assembly Identification - Page 13 - FORDification.com

And this...........

Look at your truck. If it is a Ford '99-'03 SuperDuty pickup with single rear wheels (SRW) and a 7.3L diesel engine, then it has a Ford "Sterling" 10.5" rear axle. The "Sterling" means it was manufactured in the Ford axle plant in the little town of Sterling, Michigan.

The only numbers on the axle tag that mean anything to most of us is the "3L73 10 5" at the beginning of the second line. That tells you that you have a 3.73 axle ratio with limited slip and a 10.5" ring gear. If that code were "3 73 10 5", then you would have a 3.73 axle ratio without limited slip, and it would have the 10.5" ring gear.

On most of those axle tags, the first character is covered by a bolt head and/or gunky grease and dirt. So unless you remove the tag and clean it up, you might think it begins with L73 or just 73.

Last edited by Hank; 07-18-2010 at 06:46 AM.
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  #8  
Old 07-18-2010, 07:21 AM
Let's go B's!!!!

 

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Well, I would have said a Ford 10.25 rear

What is my Ford rear end ratio, do I have positraction - Drivetrain.com


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Old 07-18-2010, 07:44 AM
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Quote:
Originally Posted by Southpaw View Post
Well, I would have said a Ford 10.25 rear :shrug
They share the same cover so that chart could apply to either one.
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  #10  
Old 07-18-2010, 09:14 AM
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Good info Hank......Thanks, Fred
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