I am in the process of replacing the pan under my rear seat & the pan that runs between the rear wheel wells & the brace in this area (the 4th brace if you will). I don't know who is familiar with this area, but the rear seat pan has a lip on the top this lip originally is under the lip on the brace and then the pan between the wheel wells sets on top of the brace and it is all spot welded together so that the brace is sandwiched between the sheetmetal. Who around here has replaced the above mentioned sheetmetal and if you did did you just lay all the sheetmetal over the brace and weld it up that way(the easier way) ? Or did you put it back the original way. This is a 66 that will be a driver. Does anyone foresee any problems (structural problems) not welding it up as it originall came.