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

'81 Axle Code

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Old

Jan 10, 2001 | 03:10 PM

#1

kaisermat

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'81 Axle Code

I need to find out as much information about my rear axle on my F-150. The code is "13" on the inside door, once again it is a '81 model. I need to find out the ratio, style, etc. Any help would be greatly appreciated.

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Old

Mar 3, 2002 | 12:53 AM

#2

apotech

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From: Checotah U.S.A.

'81 Axle Code

According to my ford shop manual for 1981 the rear axle code 13 is a 2.75 to 1 non limited slip hope this helps.

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Old

Mar 3, 2002 | 12:37 PM

#3

Franklin2

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From: Virginia

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'81 Axle Code

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