Match drilled and prepped 1058 hinge frame, dimpled frame as shown. Set bag. door into place and aligned. Made shims from scrap alum. and used double sided tape to hold position. Match drillled the bottom and top holes of hinge frame into hinge of door. Match drilled resr of hinge holes in 1058 hinge frame. Mach. CS the hinge holes and riveted the hinge to frame.