ive just removed my LHD headlights and removed the sealed beam unit from its frame by unscrewing the 3 small X head screws on the frame. The new RHD unit isn't sealed beam, it's got the main lamp and side light lamp removable. I am trying to fit the new lighting unit into the frame but it doesn't seem to fit. The 3 locating raised areas on the light unit don't seem to marry up with the indentations on the frame....., Help!