What do the colors in this frame rail diagram mean?

Black lines indicate the original frame, red lines indicate the new section, and blue marks indicate weld locations.

What three ways of joining a new section to a frame rail are shown?

1) New section on the outside of the frame rail, 2) new section flush with the frame rail, and 3) new section inset slightly into the frame rail.

Where are the welds placed in each configuration?

In all three diagrams, welds (blue marks) are shown at the top and bottom of the joint where the red new section meets the black original frame.

Does the diagram give dimensions or weld specifications?

No. It only shows relative placement of the new section (outside, flush, or inset) and weld locations; no dimensions, materials, or weld specs are included.

Home/ Registry/ Ford/ Bronco/ 1987-1991/ 1991 Ford Bronco/ Photo supermotors.net/registry/media/586534

Frame Rail Section Weld Placement Diagram - Outside, Flush & Inset Splice Options

Diagram showing three frame-rail weld options labeled outside, flush, and inset

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Instructional diagram comparing three weld-placement options for splicing a new frame section to an original frame rail.

AI caption November 2007 · Photo 270 of 420

This is a simple hand-drawn illustration (not a factory document) showing three possible methods for welding a new section onto a vehicle frame rail. A color-coded legend defines the elements: black lines represent the original frame, red lines represent the new section being added, and blue marks represent weld locations. Diagram 1 shows the new section positioned on the outside of the frame rail, overlapping the original frame's edge, with welds at the top and bottom corners. Diagram 2 shows the new section mounted flush with the frame rail, butting up evenly against the original frame's end. Diagram 3 shows the new section inset slightly inside the original frame rail, again with welds at the top and bottom joints. The drawing was uploaded to a 1991 Ford Bronco gallery alongside other sketches of tubing adapters, suggesting it documents a planned or completed frame repair or modification. A reader can learn the three basic placement options for a frame rail splice section (outside overlap, flush butt, or slight inset) and where welds are placed in each configuration, though no dimensions, materials, weld specifications, or vehicle-specific applicability information is given.

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Frequently asked questions

What do the colors in this frame rail diagram mean?: Black lines indicate the original frame, red lines indicate the new section, and blue marks indicate weld locations.
What three ways of joining a new section to a frame rail are shown?: 1) New section on the outside of the frame rail, 2) new section flush with the frame rail, and 3) new section inset slightly into the frame rail.
Where are the welds placed in each configuration?: In all three diagrams, welds (blue marks) are shown at the top and bottom of the joint where the red new section meets the black original frame.
Does the diagram give dimensions or weld specifications?: No. It only shows relative placement of the new section (outside, flush, or inset) and weld locations; no dimensions, materials, or weld specs are included.