TD4 Ball-Diff. Nut/Screw Set, RC spare parts

The TD4 Ball-Diff. Nut/Screw Set brings together the small mechanical parts used in a TD4 ball differential, giving RC model maintenance a focused hardware pack instead of a search through mixed workshop stock. The set contains a shouldered screw, a coil spring, washers, a blue metal retainer piece and 8 steel balls, all centered on the differential assembly shown in the designation. Within a ball differential, these parts work as a pressure and contact system: the spring loads the assembly, the screw provides the fastening point, the washers sit between moving or clamped surfaces, and the steel balls form the running contact elements inside the mechanism. That combination matters when a differential needs fresh hardware after wear, disassembly or a lost part during service. The blue anodized component adds a dedicated fitted part to the set rather than relying only on generic screws and washers. On the bench, this kind of pack supports a clean rebuild of the TD4 differential with the exact group of small components kept together in one place. It suits routine maintenance sessions, targeted repairs after drivetrain wear, or preparation of a spare parts box for future servicing on a compatible RC chassis.