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A hydrostatic transmission. The hydrostatic transmission generally comprises a sump containing hydraulic fluid, a charge pump in flow communication with the sump for creating high pressure hydraulic fluid from the hydraulic fluid, a center section having hydraulic porting formed therein, a hydraulic

A hydrostatic transmission. The hydrostatic transmission generally comprises a sump containing hydraulic fluid, a charge pump in flow communication with the sump for creating high pressure hydraulic fluid from the hydraulic fluid, a center section having hydraulic porting formed therein, a hydraulic pump, a hydraulic motor drivingly connected to the hydraulic pump through the hydraulic porting, and a manifold defining a gallery for storing the high pressure fluid. The gallery is in flow communication with the charge pump and the hydraulic porting.

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1. A hydrostatic transmission comprising:a housing forming a sump for hydraulic fluid; a center section mounted in said housing; a hydraulic circuit formed in said center section and operatively connecting at least two hydraulic units; a manifold positioned adjacent to said center section in said ho

1. A hydrostatic transmission comprising:a housing forming a sump for hydraulic fluid; a center section mounted in said housing; a hydraulic circuit formed in said center section and operatively connecting at least two hydraulic units; a manifold positioned adjacent to said center section in said housing and forming a gallery separate from said sump; at least one check valve mounted in said center section to permit fluid communication between said hydraulic circuit and said gallery; a charge pump in fluid communication with said gallery, said charge pump being mounted separate from said manifold; and a relief valve to allow hydraulic fluid to pass from said gallery to said pump, wherein said relief valve is mounted in a valve body integrally formed in said manifold.