Image Item No. Description  48183  Wedge, Plate 3 x 4 with Stud Notches Catalog: Parts: Wedge, Plate  3933a  Wedge, Plate 8 x 4 Wing Left without Underside Stud Notch Catalog: Parts: Wedge, Plate  3934a  Wedge, Plate 8 x 4 Wing Right without Underside Stud Notch Catalog: Parts: Wedge, Plate