The seal is leaking behind, I guess you call it the brake drum/rotor. I read do not remove the cast plate the seal fits in... Bad things will happen.
There are 2 seals there from the factory. My plan was to remove the outer one and leave the inner. Well, I got most of the outer one out and it is leaving the outer section of it with like a washer. It I drill and try to pull, I will destroy the inner seal.
Do I say go for it and take the inner seal out? Then do I need to replace both seals? Or is one modern one ok? I have searched through threads and don't see an answer.
Hello again!
Yes you are correct, do not remove the cast plate behind the brake drum. Bad things will definitely happen.
Yes there are 2 seals from factory. They should be a leather type double lip seal if original. Most likely both are leaking, so only pulling and replacing one doesn't do a ton of good, especially since it can be harder to get new seals in there the way you have it now. The seal design IH used is a bit confusing, but just pull everything out and you'll be fine.
I would recommend not drilling through that seal. The bull pinion bearing sits right behind that seal, so if you accidentally drill too far you could really mess up that bearing, and that would also not be a good day.
What I found works best on those seals is to use
one of these. If you can fit it in between the seal and the shaft, or take a small screwdriver or a punch to make a hole in the seal (not a drill), these will pull the seals right out. Tool brand doesn't matter, a cheap one will work fine.
As stated earlier I would definitely replace both seals per side. You will be able to fit 2 seals back in, just make sure to grease the lip, then drive the first one in. On the second one, pack as much grease as you can into the inside part of the seal and grease the lip, then drive it in, then pack some more grease in between the two seals. This is because the second seal doesn't get as much lubrication if the first seal is working correctly.
Another note: when you took off the bolt and washer that holds the drum on, was there a cork gasket between them and the shaft?
And also, are you planning on doing any work with the brakes?
Please feel free to ask more questions if you have them!