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Building Chassis For Our 1967 Chevy C10 Triangulated Crossmembers

13. Another move that substantially boosts the strength of the chassis is adding triangulated crossmembers. Using 1-1/2x0.120-inch wall chrome-moly tubing, we welded X-shaped braces throughout the frame, from front to back. When these X-shaped crossmembers are welded into the perimeter of the frame, the frame ends up becoming a box with a bunch of triangles in it, and that's a good thing. Triangles are the strongest geometric shape you can design.
1967 Chevrolet C10 Custom Chassis Fabrication - Picking Up the Pieces

 13. Another move that substantially boosts the strength of the chassis is adding triangulated crossmembers. Using 1-1/2x0.120-inch wall chrome-moly tubing, we welded X-shaped braces throughout the frame, from front to back. When these X-shaped crossmembers are welded into the perimeter of the frame, the frame ends up becoming a box with a bunch of triangles in it, and that's a good thing. Triangles are the strongest geometric shape you can design.  View Related Article

 

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