I did a search on the site and came up with more than 1000 hits for the "216 breather tube". I took my truck out for a ride the other day and then noticed a small oil stain under the breather tube near the distrubitor the next morning. I took the tube out and it is empty. I couldn't find anything on the site about some sort of filter or some type of steel wool or something like that so it could still breath and then let the oil splatter drip back into the motor, have you ever heard of something that goes into the tube to block oil splash or oil drops from making their way down the tube and then on to the garage floor?