Rear Main Seal Offset or Not and rtv usage
If the seal has wigs on it, you leave that half alone.
You put the other half in the block and you determine how far the seal is proud of the block.
You only want to .010-.015 proud. If it’s more than that you need to cut the seal down until you get there.
I do it with a belt sander but you need to go SLOW and sneak up on it or you’ll Jack it up. If I have a cap cutter I use that.
You never offset a seal like many do. The seal is similar to a bearing in that it has crush built into it so that when the two halves are put together they had some load on them.
If you offset the seal you change that. And if the seal has too much rush it will go out of round and leak like a sieve.