This maintenance kit contains one set of replacement components intended for the BD9 series double joint universal on 1/10 scale RC touring car drivetrains. The parts are supplied as a service set to refresh worn universal joints and restore predictable drivetrain feel without modifying chassis geometry.
Installation is intended for hobbyists familiar with basic drivetrain disassembly, the kit fits into the existing universal assembly and replaces the joint components directly, it does not require additional tools beyond common hobby hand tools and a hex driver for hub removal.
When used during setup and tuning this service set helps maintain consistent wheel coupling and reduces slop that can affect cornering predictability. Include it in periodic inspections and after heavy running to keep the drivetrain operating as intended.
This kit serves as a direct replacement service set for BD9 and BD10 family double joint universals, recommended for scheduled maintenance to preserve drivetrain consistency and handling balance.
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