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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Help w/Rear end tag

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Old Mar 27, 2004 | 06:46 PM
  #1  
jcubi@sbcglobal.net's Avatar
jcubi@sbcglobal.net
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From: Riverside, CA
Help w/Rear end tag

I just got a 1986 F250 Lariat Diesel with a 3speed auto tranny over a week ago. I wanted to know what the rear end gear ratios are, so I went under the truck looking for the id tag; what I saw under there it wouldn't give any clues because it didn't say what the ratio are and I do not have any Ford manuals to look into it. The tag reads as this:
V12GA
55 10 2 6G17
Can some one help me.....

TIA

JC
 
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Old Mar 27, 2004 | 10:01 PM
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Mil1ion
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Looks like a 3.55 > 10" ring gear to me built on July 17/86
 
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Old Mar 28, 2004 | 11:39 PM
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MontanaFord
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i was thinkin the same thing for the ratio, goin off of the 55 that's in the ID numbers...sometimes the 3 doesn't show real well...

MontanaFord
 
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Old Mar 29, 2004 | 10:18 AM
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Big Orn
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Could be a Sterling 10.25" ring with 3.55 gearing. I have noticed that the tags on the Sterlings leave off the last digit and it reads "10 2". I think that was the first year for the Sterling in the 250's.
 
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