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Member
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Join Date: Jun 2010
Location: Lebanon, PA
Posts: 257
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Member
Join Date: Jun 2010
Location: Lebanon, PA
Posts: 257
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As an engineering student, I will tell you that round is the strongest shape unless you know which direction the impact force will be coming. A 2x3 rect. tube vs a 2" round with equal wall thickness that are only impacted vertically (if you stand the 2x3 section upright), the rectangular section will be stronger. Now that same section impacted from the side instead would be weaker than the round section.
Now, after I just said all that, the tubing you have is more than strong enough. Use what you have.
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2001 black 4runner sport
Replaced at 180,000 Miles: Tundra 199mm brake upgrade with Advanced Auto Platinum pads and Brembo rotors and stainless steel extended lines. OME 906s with 10mm trim packer and Bilstein 5100 (Ford F150) in the rear, TRD Tundra springs with Tundra Bilstein 5100s up front. New Toyota lower ball joints, Autozone inner and outer Tie rod ends, and all polyurethane on front and rear sway bars 
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