Hi, The two type 540 motors are relatively easy to find. The bigger task is getting together all the parts to build the gearbox. If the tank you bought did not come with the assembly manual, check out WACKY'S RC TANK GUIDES and go thru steps 1 to 10 of the 2A6 manual. All parts needed are clearly shown. The only source that can put them all together is the factory itself through the dealer/distributor.