A hydraulic energy recapture system of an agricultural, construction, or industrial vehicle or machine having an engine, a driveline, and at least one axle having at least one service brake, the hydraulic energy recapture system comprising: a power-shuttle transmission connected to the engine, said power-shuttle transmission having an input shaft and an output shaft, said power-shuttle transmission further having a forward shuttle gear train, and a reverse shuttle gear train in parallel with said forward shuttle gear train, said forward shuttle gear train having a forward shuttle clutch selectively coupling said forward shuttle gear train with said input shaft, said forward shuttle gear train further driving said output shaft when said forward shuttle clutch is engaged, said reverse shuttle gear train having a reverse shuttle clutch selectively coupling said reverse shuttle gear train with said input shaft, said reverse shuttle gear train further driving said output shaft when said reverse shuttle clutch is engaged; said output shaft of said power-shuttle transmission driving the at least one drive axle; said hydraulic unit is coupled with said output shaft of said power-shuttle transmission, said hydraulic unit being operable to convert rotational power to hydraulic pressure and flow, and to convert hydraulic pressure and flow to rotational power; and a pressurized hydraulic accumulator is in hydraulic communication with said hydraulic unit operable to store hydraulic fluid under pressure characterized in that: the hydraulic energy recapture system (140, 240) further comprising: a hydraulic unit clutch selectively coupling said hydraulic unit with said output shaft of said power-shuttle transmission. a power-shuttle transmission connected to the engine, said power-shuttle transmission having an input shaft and an output shaft, said power-shuttle transmission further having a forward shuttle gear train, and a reverse shuttle gear train in parallel with said forward shuttle gear train, said forward shuttle gear train having a forward shuttle clutch selectively coupling said forward shuttle gear train with said input shaft, said forward shuttle gear train further driving said output shaft when said forward shuttle clutch is engaged, said reverse shuttle gear train having a reverse shuttle clutch selectively coupling said reverse shuttle gear train with said input shaft, said reverse shuttle gear train further driving said output shaft when said reverse shuttle clutch is engaged; said output shaft of said power-shuttle transmission driving the at least one drive axle; said hydraulic unit is coupled with said output shaft of said power-shuttle transmission, said hydraulic unit being operable to convert rotational power to hydraulic pressure and flow, and to convert hydraulic pressure and flow to rotational power; and a pressurized hydraulic accumulator is in hydraulic communication with said hydraulic unit operable to store hydraulic fluid under pressure characterized in that: the hydraulic energy recapture system (140, 240) further comprising: a hydraulic unit clutch selectively coupling said hydraulic unit with said output shaft of said power-shuttle transmission.