But you'll find that BDM quit using the vents in the cover and put in button vents on the backside of the inner primary between the motor and the tranny. So the "vented" cover is useless!
If you want to get a new gasket... just go to the parts store and buy a sheet, come home trace out the old one and cut a new one...
This is the vented style cover that the top "vent" gets plugged off with rtv silicone as you can see the silver silicone under the o-ring
The button vent I'm talking about is shown here
and you can see the hole just to the right of the center bolt hole above the adjustor in this pic
You can also run the gasket on the vented style covers if you want.
In case you don't know... the idea in the vented cover was that there is a small hole in the bottom of the square on the outer primary. They would put a sponge in the square. Where my silicone at the top of that square is... there is a channel going UP then across to the right. BDM swore there is no way the oil will go in the hole, soak the sponge, travel UP, then across and leak. NO WAY... GO FUCK YOURSELF it sure did! Just like the engraved recommendation for 1.5 qrts (shown in the first pic), that started to soak starters, so the owners manual still states the real amount of 1 qrt. So in comes a hole and a button vent in the rear with a service bullitin to remove the the sponge and silicone off the channel and holes. Then in 2007 when they used up this POS design they just put a paper gasket over the whole thing and the left side of the cover area is just blank.