both driver, and pass. side floor pan is cracked where the seat bolts to the nut in the floor. On the drivers side the nut completly rip out of the floor pan leaving a gaping hole. Out of the 4 Samurai's I have owned, and the few I have seen close up, it appears they all have cracked floors. its because when you slided the chair to the farest back position, all your weight is centered on the 2 back mounts, and no load is on the 2 front mounts, causing the back ones to have excessive load, failing. I think on the drivers side im going to weld a nut to a washer and weld that down to the floor. but on the pass side I would like to do more than put a washer. I was thinking of welding a plate down, but I dont think I could form the shape of the corrigated pass. floor pan.