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Sterling 10.25 decode

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Old Sep 20, 2008 | 05:01 PM
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Sterling 10.25 decode

Rear axle tag: S 132 P
4L10 10 2 7H28
Thank you. Kirt
 
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Old Sep 20, 2008 | 10:42 PM
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part of that tag looks familiar, like the one from my 88 f 350, 4:10 ratio gears and I think the L indicates it is a locker, but I am not the 'guru' of decodes...do you need an extra locker?
 
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Old Sep 20, 2008 | 11:52 PM
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No. It is for sale and I am considering buying it for my project truck. I wanted to know, for sure, what it was. It has the typical sterling full floating hubs that stick way out, no fill hole in back cover, small ring hump, etc... But I am trying to be thorough. Thank you. Kirt
 
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Old Sep 21, 2008 | 12:40 AM
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I know that I spun a shim on my 88 f 350 rear that caused a humming in rear diff., from the tolerances being altered, when I had everything replaced as a precaution, it is used often as a work vehicle, I was told that the 10.25 had something that was weaker about them once you moved into the 4:10 ratio and up.
 
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Old Sep 21, 2008 | 12:52 AM
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4L10 = 4.10-1 with Limited Slip.

The first use of the Sterling 10.25 rear axle was in 1985.
 
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Old Sep 21, 2008 | 01:37 AM
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NumberDummy, what was the issue/concern w/ the 4.10 and up ratio,i.e.-4.88 etc being weaker, because of the larger gears or ????
 
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Old Sep 21, 2008 | 01:42 AM
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Originally Posted by lostinfords
NumberDummy, what was the issue/concern w/ the 4.10 and up ratio,i.e.-4.88 etc being weaker, because of the larger gears or ????
I've never heard of this problem before.

You might contact Ed Olson @FTEpartsguy.com and ask him.
 
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Old Sep 21, 2008 | 01:56 AM
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Thanks, I will.
 
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Old Sep 21, 2008 | 07:58 AM
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Thank you, everyone. Sometime during the night, I realized I have this question posted in the wrong forum. I should have put it in the differential/axle forum. It wasn't a question specific to the 73-79 trucks. I'll get this figured out. Kirt
 
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Old Mar 14, 2016 | 11:51 PM
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1988 f250 xlt

Originally Posted by NumberDummy
4L10 = 4.10-1 with Limited Slip.

The first use of the Sterling 10.25 rear axle was in 1985.
REAR END ID TAG:

v1266
3.55 10 2 8 D 23
 
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