The GPM XRT2533TS gear set applies 40Cr carbon steel for the 33T spur and 25T motor gear to raise wear resistance and reduce deformation under torque. This configuration enhances transmission stability when compared with standard two-point support designs, and the included 7075 aluminium mount improves structural rigidity at the gear interface. The kit is supplied with all necessary shims, bearings and mounting hardware to replace the factory components and restore consistent gear engagement.