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

Rear diff and trans codes

Old Jun 13, 2004 | 12:02 AM
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rgillies1986's Avatar
rgillies1986
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Rear diff and trans codes

I have a 1986 F150 302 4X4 automatic w/ overdrive. The driver side door codes are all removed, so I am unsure what rear end and trans I have.

I pulled the codes off the rear end and trans, any help is greatly appreciated.

Trans code:
RF-E39P-7006

Rear end code:
5910P
55 88 6C03

Also, would the rear end be limited slip? I am assuming that it is not because when the rear tires are off the ground and I turn one tire, the other one turns in the opposite direction.

Thanks
 
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Old Jun 13, 2004 | 12:48 AM
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fai4g63's Avatar
fai4g63
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You have a AOD transmission and you are missing some numbers for the rear. But it looks like you have a 8.8 rear with 3.55 gears.
 
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