These elements include the reduce frame rails, any higher frame rails, and any suspension mounting area that cannot be unfastened. For any unibody car frame, the parts that can offer structural integrity include the windshield and rear window frames, rocker panels, and also the A, B and C pillars. https://automotiverepair72607.amoblog.com/the-definitive-guide-to-how-to-fix-a-bent-car-frame-38427363