1989 Ford Bronco Rear Frame Dimensions Diagram - Rail Width & C-Channel Specs

This is a hand-drawn dimensional diagram (blueprint-style) showing the rear frame cross-section measurements of a vehicle, uploaded to a 1989 Ford Bronco gallery under the filename "rear frame.JPG". The drawing depicts two C-channel frame rails viewed from the rear/end. The left rail is drawn as a full C-channel with an overall height of 5 7/8", a 3" upper flange, a 2.5" lower flange (inside), and 2 3/4" lower flange (outside). The right rail is shown in a perspective view with a 5 1/4" inside height between flanges. The distance between the two frame rails is dimensioned as 37.5" outside-to-outside and 37" inside-to-inside. An additional 3.5" measurement is labeled "end of frame to bracket," indicating the distance from the end of the frame rail to a bracket. A reader can learn the frame rail channel dimensions, rail spacing, and bracket setback, useful for fabricating rear bumpers, crossmembers, hitches, or frame repair sections. The document contains no part numbers, year statements, model names, or other text beyond the dimensions and one label.