1976 Dodge Truck Inner wheel bearing installation issues.

Well, the wheel seal was trashed so I decided to replace it. Easy? Nope. I am sure you know this but this is the seal that goes into the steering knuckel to protect the inner wheel bearing. I tapped the old one out from out to in with a punch and 4 lb mallet. Well, that was the easy part. The hard part is getting the new one in and I have already torn up one trying to get it in.I know for a fact that a punch will not work cause it dents in the metal on the seal making it useless. I see some installers online without a hole in them boasting to install one of these seals. There is 1 1/8 spindle bolt this seal has to go through so whatever tool I use has to have that sized hole in it and completely cover the circumference of the seal to spread out the force applied. I have seen people using thick PVC pipes but I cannot find one at least 3 inches in diameter. I found an old exhausted fire extinguisher that is a little over 3 inches.I am drilling a hole in the bottom of it. Now, does the seal get installed from the inside to the back of the knuckle flush or the back to the front cause I am assuming that there is probably a taper in the back. Is there anything I can put inside the knuckle like antiseize lubricant to make it easier to install? This is ridiculous. Thanks.