Hydraulic remote control for motor vehicle manual shift transmission

A gear select and shift mechanism for a motor vehicle having a transmission having a housing and including a select and shift rail having an operating portion positioned within said housing and an access portion positioned outside of said housing, said rail being axially movable for selection of a couple of gear ratios and being rotatably movable in opposite directions for shifting into a gear ratio, said mechanism comprising a manually operable shift lever located remotely from said transmission and motion transmitting means between said shift lever and said shift rail for axially displacing said shift rail and for rotating said shift rail in response to pivoting motion of said shift lever, said motion transmitting means for rotating said shift rail comprising a hydraulic master cylinder having a linearly displaceable input member connected to said shift lever for operating said input member by pivoting motion of said shift lever, a slave cylinder having a linearly displaceable output member connected to said access portion of said shift rail for rotating said shift rail in one of two opposite directions in response to linear displacement of said output member, and hydraulic link means interconnecting said master cylinder and said slave cylinder and operative to direct the hydraulic fluid discharged from said master cylinder in response to linear displacement of said input member to said slave cylinder and operative to direct the hydraulic fluid discharged from said slave cylinder in response to linear displacement of said output member to said master cylinder so that linear movement of said input member of said master cylinder produces corresponding linear movement of said output member of said slave cylinder so that pivoting movement of said shift lever produces rotation of said shift rail, said motion transmitting means for axially displacing said shift rail comprising a bracket adapted to be secured to said transmission housing proximate said shift rail, a first lever pivotally mounted on said bracket and engaging said shift rail access portion, and means operative in response to axial displacement of said shift lever to pivot said first lever on said bracket and axially displace said shift rail.