The Tamiya FF03 has a fairly weak steering construction. The screw on the backside of the hub provider can get free and fall off simply for the reason that inventory hub is plastic and the small bushing that holds the screw can crack simply. To repair the issue, you both discover a bigger step screw that matches, or use a barely bigger screw with a small brass tubing. It is suggested that you just add a little bit of tremendous glue to the screw thread for it to remain safer in there. You should make sure that the construction is safe whereas not hindering steering.