Replacing the rear main seal in a 360 without removing the crank?

Thanks for the reply and great video. My new seal is not of the felt type but rather a black neoprene I imagine that I should lube the seal and work it around the crankshaft until it's flush with the block. Should I put rtv, or sealer where the 2 halves meet or will it seal without using anything? I hate oil leaks! Thanks for your reply/patience. (First timer here and I don't want to screw anything up)
yes, you'll use a little rtv at the ends, I just do the block side. I put a little oil on the new seals inner lip. I use the fel pro seals (hard rubber).