Re: Complete Floor Pan Replacement
Jack the car up by the rocker edges at the rear. Support the car at the front edge of the rocker as well. At this point, make sure the car is level. Allow for the width of the new floor pan when spacing the front stands.
Remove the old floor,including the torque boxes. The new floor slides in from the front from underneath. You will need to tilt the rear of the floor as high as possible,and push back on the way in. Some minor temporary twisting might be needed, but it will go. Once the floor clear the firewall area at the front, it will almost drop into place. The floor's edge should be above the firewall partial tunnel. If you brace the car somewhat, there should be no flexing. If you use sturdy jackstands, the car should not flex anyway. The floor only installs one way-just lineup the edges,and weld away. Thats the simple thumbnail version of how to replace the full floor.