What rear end do I have? - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 03-21-2007, 04:21 PM Thread Starter
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What rear end do I have?

Hello guys, I'm new to the big trucks and trying to learn a few things. I have a '02 F-250 CC with the 7.3L in the Lariat package. I do have 3.73 rear end gears but it is an open unit.

I would like to put a posi unit in it but not quite sure what rear end it is. Is it a Dana 60?

And would any of you know of a good place to get a posi unit? E-bay maybe?

Thanks,
Bobby
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post #2 of 6 Old 03-21-2007, 04:23 PM
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I would at least price an electric locker
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post #3 of 6 Old 03-21-2007, 04:32 PM
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beepbeepbeepbeep, I should know this

I think its the Ford 10.5.
post #4 of 6 Old 03-21-2007, 04:40 PM
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I thought it was either Sterlings (Ford) 10.25'' or 10.5'', diff housing and cover being the same.

I always assumed every Superduty had a factory limited slip, mine does and I just have an XLT - Are they ordered with or without? Put on the dealer lots with and without?
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post #5 of 6 Old 03-21-2007, 06:06 PM
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Up front you have a Dana 60, out back you have a Sterling 10.5".

Check your Diff tag on the right hand side of the diff cover, and tell us what it says. That will tell us if it's open, or L/S. You might have a L/S that needs rebuilt b/c they have been known to wear out quickly.

Hope this helps.

2001 F250
11.62 @ 115.79
Owner of Marty's Diesel
Elkton, Maryland
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post #6 of 6 Old 03-21-2007, 06:34 PM Thread Starter
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Okay, here is what the tag has on it. Granted, it is still bolted to the rear end, therefore can't see a couple of the numbers.

Top Row: 3 S 409 H
Bottom Row: L73 10 5 1L26

I am assuming this is a 3.73 gear ratio. But does the L indicate a Limited Slip?

Every great once in a while it will spin both tires, but for the most part it only spins the right. At the track it only spun the right.

Thanks,
Bobby

2002 F-250 7.3L Crew Cab Lariat
SuperChips Programmer, 4" MBRP turbo back, Volant Cold Air kit, Cut out rad. support for ram air effect,
Installed signal/heated telescopic mirrors, Recon White Lightning light bar, Recon Big Rig amber running lights, Billet grille
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