Yes, the large metal plate. I thought it would affect the drag in the water. Does anyone have a good, used one? Don't need a new one. As for other parts, I am in the process of creating a list of all of the stuff I need so I will be buying a LOT of stuff from GI and others. I am also looking to get all of the info I can on this car. It belonged to Inna Cabanas, she was the Treasurer of the IAOC for a while.