A power transmission employs a plurality of torque-to-thrust apparatus to control the engagement and disengagement of the transmission ratios. Each of the torque-to-thrust apparatus is operatively connectible with a pair of electric motors, which are individually operable to control the operation of the torque-to-thrust apparatus. During transmission operation, one of the electric motors is operable to disengage a friction device within the transmission while the other electric motor is operable to engage a different friction device within the transmission, thus permitting controlled ratio upshifts and downshifts.