Common problem with these pans, most simply notch the K member, if it were mine I'd drop the pan off and clearance cut the corner of the pan to suit, have a professional welder TIG the new piece in to prevent leaks and good to go, yes adding washers, plates and other items might get you there but as mounts soften and sag, engine rocks etc it's always on your mind, clearance it via the pan and be done with it.