500E Metal Tail gearbox assembly

?500 Metal plate(L) x 1 ?500 Metal plate(R) x 1 ?500 Metal Tail Belt Unit x 1(F16xF18x40.8mm) ?500 Control arm mounting bolt x 1(14.6x5x10mm) ?Aluminum bolt x 1(F4x17.3mm) ?500 Drive pulley(19T) x 1 ?500 Pulley cover x 2 ?500 Tail rotor shaft x 1(F4x56.8mm)