[duke36]

The 30920 dovetail may be for the '30 and very early '31 with wood in doors/ jambs as stated. This part fits in the strike jamb post. The 160 B guide rubber bumper inserts look similar in appearance but slip in to the jamb strike post with pot metal looking parts with springs, etc. Perhaps the catalogue 30920 vehicle description isn't correct? The Slant window 160 B door bumper kit doesn't include a plate/ housing with 4 screws.. Perhaps that' s the confusion.