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Ford Bronco Transmission Crossmember Modification Diagram - Weld & Cut Steps

Before and after crossmember modification diagram with welding and cutting notes
Before and after crossmember modification diagram with welding and cutting notesOriginal file
Before and after crossmember modification diagram with welding and cutting notes

Reference · 1980-1986 BroncoAll 34 schematics

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Before/after fabrication diagram of a frame crossmember showing where to weld and cut during the modification.

Part of 1980-1986 Ford Bronco Schematics

AI caption · Photo 35 of 182

This document is a simple hand-drawn schematic (line drawing) illustrating a crossmember modification, likely related to transmission clearance based on the upload filename "tranny drawing.jpg". Two side-profile views are shown. The "Before Mod:" view depicts the original crossmember: a mostly flat member with a raised/offset section at one end and a mounting plate (with what appear to be bushings or spacers) on top. The "After Mod:" view shows the modified configuration: a raised box-shaped structure is added where the offset was. Two instructional callouts explain the procedure sequence: "Weld on before cutting the crossmember" points to the new box section, and "Cut here after welding is done" indicates the original lower portion of the crossmember to be removed after the new structure is welded in place. The drawing conveys that the reinforcement/raised section must be welded on first, and only afterward should the original crossmember material beneath it be cut out. No dimensions, part numbers, torque values, years, or vehicle model identification appear anywhere in the drawing. It was uploaded to a 1980 Ford Bronco gallery, but the document itself contains no vehicle-specific information.

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Frequently asked questions

What order should I do the crossmember modification in?
According to the diagram, weld the new box section on first ("Weld on before cutting the crossmember"), then cut the original crossmember section out ("Cut here after welding is done").
Where do I cut the crossmember?
The diagram's arrows indicate cutting the lower/original portion of the crossmember beneath the newly welded box section, only after the welding is complete.
What does the 'After Mod' drawing show compared to the 'Before Mod' drawing?
The 'Before Mod' view shows the stock crossmember with an offset/dropped section at one end. The 'After Mod' view shows a raised box-shaped structure welded on in that area, with the original lower section marked for removal.
Does this diagram include any measurements or part numbers?
No. The drawing contains no dimensions, torque specs, or part numbers, only the two procedural callouts about welding and cutting.

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