On a quest for the elusive "Dry AeroVee"

[Area 51%]

Outboard lower unit gear oil seals might prove to be your friend.

[Bryan Cotton]

Like these?
https://www.amazon.com/UTSAUTO-Gearcase ... B0CFHGQFSW

[Area 51%]

Those have a silicone coating and have never been my favorite. I like the fiber only type like Yamaha uses.

5,000,000 happy Mercury owners probably makes the silicone gasket a viable option though.

Something to consider is the possible difference in thread diameter of the different brands. I know the thread pitch is not universal, but unsure of the diameter.

[karmarepair]

After dropping the plate, replacing the screen, installing "lifetime" silicone gaskets with a light smear of permatex #2, and installing the acorn nuts on the sump plate studs with NEW copper washers (new copper crush washer on the VDO drain plug sensor too) with a generous smear of Permatex #2, and carefully tightened them up using a star pattern and little nibbles of torque (they were barely finger tight when removed): no more drips.

Mine always loosened up a bit. I drilled for safety wire.
.

Good idea, as you can't tighten those acorn nuts enough for them to self lock. I'll get a passel of them to drill to have on hand for the next oil change.