Whoo the fun part that makes the car feel much more complete and near being finished. I chose to just lap weld the driver’s side floor in as compared to the butt welding I did on the passenger’s side. This was mainly due to the time it would save, but also because butt welding 19-20 gauge sheet metal with flux core is difficult for me. I drilled a series of holes along the edge that goes against the inner rocker for all of the plug welds. I also cut the front part of the floor off, where it bends to go up over the toe board. I trimmed it a little overall as I didn’t want to cut quite that much of the old floor out.