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Front Hub 4131 Seal

Front Hub 4131 Seal

DaveMueller

Active Jeeper
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Location
Ohiopyle, PA
Vehicle(s)
'76 CJ5 with an '88 258 from a YJ.
AMC20, D30, D20, T150.
I've looked at enough threads to get a headache. I'm installing a National (Federal Mogul) 4131 seal in my front hub. I can't figure out which way it goes. Here's a cool cross section from the Federal website. Forget about the non-cross hatched part, since the metal housing seems to change over the years.

The cross hatched section is what my seal looks like, two surfaces facing one direction, one in the opposite. I'm inclined to install it with the two surfaces facing the same direction towards the bearing, since that would give you two surfaces to keep grease in.

Thanks
Dave

4131 seal.webp
 
The right side of the drawing, is the outside of the seal.
LG
 

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