You can get a solid transmission mount from the parts store, not sure about an engine mount. I bought a solid engine mount, but it still had fluid in it. I use the 3m polyurethane window adhesive and some loctite polyurethane caulk to fill it up. It was kind of messy but not hard. If I did it again, I might consider buying two tubes of the 3m stuff because it dries faster as far as I can tell. And is black not brown like the loctite