My RV just started leaking diff oil from a wheel seal because of course it did. To be fair, 3 years ago my 2 year newer F250 Sterling needed one, so it's due. That's probably why my braking has been a bit dodgy at times recently, I thought it was my imagination. Nope, it's obviously leaking diff oil into the drum. It must have just begun since I last had it parked for a couple of weeks.
Looking at diagrams, it appears there is only an inner wheel seal, no outer. The paper gasket for the axle shaft flange is the outer seal. Is that correct?
It seems like the only 100% sure compatible part is the Spicer 47507:
https://www.oreillyauto.com/detail/...47507/4723867/1985/ford/e-350-econoline?pos=5
Others are listed as the same exact dimensions and look correct in the photos, but the part number "9864S" is questionable:
https://www.amazon.com/WJB-WS9864S-...f=sr_1_5?keywords=9864S&qid=1583953326&sr=8-5
I say questionable because these two have the same part number, but they are totally incompatible with each other based on the photos. The one on the left lacks the bigger metal flange that the Spicer and National seals have:
Looking at diagrams, it appears there is only an inner wheel seal, no outer. The paper gasket for the axle shaft flange is the outer seal. Is that correct?
It seems like the only 100% sure compatible part is the Spicer 47507:
https://www.oreillyauto.com/detail/...47507/4723867/1985/ford/e-350-econoline?pos=5
Others are listed as the same exact dimensions and look correct in the photos, but the part number "9864S" is questionable:
https://www.amazon.com/WJB-WS9864S-...f=sr_1_5?keywords=9864S&qid=1583953326&sr=8-5
I say questionable because these two have the same part number, but they are totally incompatible with each other based on the photos. The one on the left lacks the bigger metal flange that the Spicer and National seals have:
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