Chassis bracing (floorpan)

[mrweasel]

ricola is correct, they are welded to the heater channel and the floor pan bolts go through them. You have to remove the jack supports before they will fit.

They are quite strong and stiff, as they have to do the job of the roof and keep the two halves of the body together. Without these, if you pick a 'vert body up off the pan, it will fold in half.

Hope this helps,
mrweasel