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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

decoding rear end tag

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Old Jun 26, 2021 | 08:15 AM
  #1  
dfixit1's Avatar
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From: NC Mountains
Cool decoding rear end tag

I have read over some threads. Some have links but they seem to be 404'ed. I have a 1995 f150 5.0 4x4 and the differential tag says.
S838J
3 55 89
4H16
these may as well be ancient "Greek" to me
anybody speak "Ford"/"Greek"
 
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Old Jun 26, 2021 | 03:17 PM
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Back to the top for you. I only recognize the "3 55" part as the gear ratio installed originally. But never remember what all the other codes are indicating.
Just re-read this and realize you said it's out of a '95 F150 (so probably a Ford 8.8" rear end?) so you might ask the question in the '80-'96 forum as well.

Paul
 
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Old Jun 26, 2021 | 05:26 PM
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From the decoder ring:

S838J
Bronco '89-95
Ford F150 Pickup '89-95 3.55 8.8 NL

So yes, 3.55 ratio, open diff--no limited slip, 8.8" ring gear.
 
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Old Jun 26, 2021 | 10:19 PM
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From: NC Mountains
Originally Posted by 1TonBasecamp
Back to the top for you. I only recognize the "3 55" part as the gear ratio installed originally. But never remember what all the other codes are indicating.
Just re-read this and realize you said it's out of a '95 F150 (so probably a Ford 8.8" rear end?) so you might ask the question in the '80-'96 forum as well.

Paul
Yeah,, So I was told. This is not my usual M/O,, just got ahead of myself this morning. Thanks for your input
 
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Old Jun 26, 2021 | 10:21 PM
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From: NC Mountains
Originally Posted by 85e150
From the decoder ring:

S838J
Bronco '89-95
Ford F150 Pickup '89-95 3.55 8.8 NL

So yes, 3.55 ratio, open diff--no limited slip, 8.8" ring gear.
OK,, that is great. to know, thanks for your help
 
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