[Mustard72]

Well, I was able to make a step forward and get the floor mostly welded in place yesterday. The hump flange fit problem was cured by many low frequency high amplitude force applications. I other words I hit it a bunch with a hammer, using a block of hardwood to increase the accuracy of where the force was applied when necessary. After pounding down the bottom corners of the firewall hump so that its flange better (still not perfect) matched the floor flange in those corner areas, the firewall flange through the hump area needed to have the lip straightened in order to better match the floor flange. This has caused the holes (from the drilled out original spotwelds) in the firewall flange to only half overlap the floor flange. So I plug welded what I could through that area, leaving half a hole exposed to the inside of the cab (which I'll patch later). The edges of the flanges were pretty much flush with each other, so I welded the edges together, as well. Once outside of the hump area, the rest of the old original spot weld holes were able to serve as plug weld holes to connect the firewall to the new floor.