1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

axle codes

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Old

Sep 25, 2007 | 09:26 PM

#1

17fordguy

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From: Colorado Springs

axle codes

ok im having slight issue figuring which axle i have in my truck no door sticker and vin code aint helping i do have the code of the differential but caint get it decoded.
code is
s838m
3 55 88 5h07

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Old

Sep 25, 2007 | 10:10 PM

#2

subford

Fleet Owner

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From: Easton,Ks

That is an 8.8 inch open rear end with a 3.55:1 ratio.

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Old

Sep 25, 2007 | 10:18 PM

#3

xjoedirt55x

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Joined: Oct 2005

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From: Cincinnati

stupid question, but what do you mean by open rear end?

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Old

Sep 25, 2007 | 10:41 PM

#4

17fordguy

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From: Colorado Springs

ok thanks im runnin i belive 30's on the back about to swap to four wheel drive what would be a good swap for gears

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Old

Sep 26, 2007 | 07:52 AM

#5

subford

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Joined: Aug 2005

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From: Easton,Ks

Quote:

Originally Posted by xjoedirt55x

stupid question, but what do you mean by open rear end?

It means that it is not an LS (limited slip) rear end. The center carrier is open, nothing in it.

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1987, 1996, 2001, 83, 88, 94, axle, code, codes, decoding, f150, ford, s838m, truck, vin

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