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.