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I run the 2" welded connectors. They make a huge difference in stiffness and run under the floor. I used ART (Auto Rust Technicians) connectors. I believe they offer similar for B body's or you can DIY.

If I had to choose one, torque boxes or conectors, I'd choose the connectors... I actually run both.



Same here (connectors and boxes). Mine are on a '72, so the connectors run through the floor. But regardless, at least get the connectors - even if they are only the weld-on-the-underside style. I can lift the car at one corner now and still open either door without jamming. Before, no way.