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Axle Seal aka wheel seal tech


mudpaws

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Long Island, NY
Vehicle Year
2001
Make / Model
Ford
Engine Size
4.0L
Transmission
Automatic
Attention mods.. Feel free to make this a sticky if no one has covered it. I searched for it in the past on here and didn't find anything about it.

When replacing your axle seals (with aftermarket parts) on the 8.8 axle, you must use the axle shaft seal meant for the 7.5 axle. This is part # 8660S.
The original, Ford seal presses into the axle tube end and has a lip that goes over the edge face of the tube.
Unless your axle tubes have a tapered (chamfered) end, you CANNOT use the aftermarket seal (part # 8835S), which is listed for the 8.8 axle. This seal is the same outside diameter (O.D.) of the standard 8.8 axle tube. On my 2001 Edge 4x4, the tube end is not chamfered.

If anyone has any further questions, you can PM me.

Hope that helps some folks out.
 


Captain Ledd

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Article Contributor
V8 Engine Swap
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Michigan
Vehicle Year
1984, 1997
Make / Model
Ford
Engine Size
302, 2.3
Transmission
Manual
My credo
If you're not making mistakes, you're not learning.
They might have tried giving you a seal for the 31 spline 8.8 in Explorers and F150's. The Ranger 8.8, for whatever reason, retains the same 28 spline shafts from the 7.5" axle.
 

bobbywalter

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23,470
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Location
woodhaven mi
Vehicle Year
1988
Make / Model
FORD mostly
Engine Type
V8
Engine Size
BIGGER
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
sawzall?
Tire Size
33-44
My credo
it is easier to fix and understand than "her"
bb vs sb scenario.
 

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