Patent ID: 7412828

Claim:
A hydraulic drive device comprising: a hydraulic motor assembly fluidly connected to a hydraulic pump assembly spaced apart from the hydraulic motor assembly, wherein the hydraulic motor assembly comprises a motor housing, a rotatable motor cylinder block disposed in the motor housing, a plurality of axial motor pistons disposed in the motor cylinder block and a motor shaft engaged to and driven by the motor cylinder block and supported by the motor housing; a gear reduction assembly for reducing the speed of the output of the hydraulic motor assembly; an axle shaft driven by the gear reduction assembly, wherein the axle shaft extends from the hydraulic motor assembly and is coaxial with the motor shaft; and a swash plate removably supportable by the motor housing in either a first position or alternatively in a second position rotated 180 degrees about the motor shaft from the first position, the swash plate engaging the motor pistons in either the first or second position.