Yokomo R12-20SM Rear bulk head shaft maintenance kit for R12  [R12-20SM]

Rear bulk head shaft maintenance kit

This maintenance kit provides replacement O-rings and aluminum countersunk washers intended for the rear bulkhead shaft of the Yokomo R12 scale touring car platform. Designed as a concise service pack, the components help restore sealing and seating where the shaft interfaces with the bulkhead, and they are also usable as option parts on related GT-series chassis.

Intended for hobby-scale RC use only, the kit supports routine trackside servicing and bench maintenance. The parts are suited for replacing worn rubber seals and restoring proper washer seating during shaft reassembly, aiding consistent shaft alignment and reducing play that can affect rear-end feel.

Installation is straightforward for those familiar with R12 rear-end disassembly: remove the worn O-rings and countersunk washers from the shaft area, clean mating surfaces, fit the new O-rings in the grooves, and seat the aluminum countersunk washers to ensure flush screw heads and correct clamp on the shaft components. No specialized tools are required beyond standard RC hand tools.