The DMD T07 is designed to be used with the Tamiya's gearbox for their Leopard A6. This gearbox is a single unit powered by two 540 motors. One motor controls forward and backward movement and another 540 controls steering. The DMD on the Pershing and Tamiya's other WWII models controls two separate gear drives. Basically, if you plan to purchase the Leopard DMDT07, you'll have to purchase the gearbox for which it is designed.