i have checkd the seal below the shoe augers and its good all corners are tight. i installed a kit that john deere said would solve my problem it consits of an angle piece for the pre cleaners and a flap for the corners of the precleaner on the outside. also the fat plastic fingers to move crop back farther befor e droping it. i made sure precleaner was shut tight . problem is still their john deere said they dont know what the problem is if i figure it out let them know. their engineers dont know anything never had this problem they said. i installed hardware cloth over the precleaner to make sure beans werent over loading pre cleaner pan. i thought they were falling forward on the backstroke of the pre cleaner pan. this helped a little but not much. any other help would be appreciated thanx.