Tamiya NDF-01 2-Speed Transmission and Related Parts Set - Brand: Tamiya - Product Name: NDF-01 2-Speed Transmission - Part Number: OP-780 - Other Parts: SP-1175, SP-1179, SP-1168 Other parts included: Suspension Shaft Set, Clutch Shoe, Tie Rod Set Although new and unopened, there are some scratches and discoloration on the plastic bag due to long-term storage. Please be aware of this. Thank you for viewing. Hop-up Option OP.780 (53780): NDF-01 2-Speed Transmission. Spare Part SP.1179 (51179): Clutch Shoe. Spare Part SP.1168 (51168): NDF-01 Suspension Shaft Set. Spare Part SP.1175 (51175): NDF-01 Tie Rod Set.