I don't quite know what to do... my 76 had this problem, sold it, I finally got a 73 240, I love her so much, but just the other day I drove her to work and by the time I got home I was sick! I've replaced the tail light gaskets, the hatch is super tight (I'm going to paper test it again tomorrow) my firend put a new gasket aournd the hatch... the piece of vinyl that is on the upper hatch is loose... I'll fix that up tomorrow, got a muffler. I just don't want to get rid of her. I like the smoke bomnb idea. It's so bad, I know some one has figured out this problem... help!!