Chris, the Dye is a very good idea, should have thought of that. Not taking the engine out of the car so doing the rear seal swap from the underside. Checked the flywheel bolts,
oil pan seal, header seals, covers, and the only spot of
oil appearance is on the bottom of the
oil seal. All this considered (and while still not wanted to tear out a perfectly good seal) I decided tonight to pull the seal and replace it since a new one is only 20 bucks. This way I can also inspect the crank and see if it'll need a sleeve. It's my first time doing this but so far everything appears fairly simple. Fortunately it's a single piece seal. Plan is to put the new seal in with perhaps a dab of RTV where the block meets and then run a thin ring of
synthetic axle grease around the inside so I'm not fitting a dry seal. Let me know if you guys thing there is an improvement to doing any of this. Thanks!