This RC-scale slide rack base is offered as a direct replacement within the YD-4 standard parts group. Made from steel, it forms the mounting foundation for the slide rack assembly and supports the rack where it interfaces with the chassis.
The base locates the slide rack and helps preserve alignment under lateral loads; replacing a worn or bent base restores intended rack geometry and reduces steering play that can affect response.
Installation follows the YD-4 standard mounting points, so confirm correct seating during assembly and verify rack travel and centring before final torque. No extra modifications are required for the supported chassis listed below.
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