Drive Range-1st Gear

With selector lever in "D" Drive range, the forward clutch is applied. This delivers torque from the in ut shaft through the forward clutch, to the input ring gear in a clockwise direction. Clockwise rotation of the input ring gear causes the output planet pinions to rotate in a clockwise direction, driving the sun gear counterclockwise. In turn, the sun gear turns, causing the reaction carrier and planet pinions to turn clockwise. Clockwise rotation of the reaction carrier planet pinions causes the output ring gear and output shaft to turn in a clockwise direction at a reduction of 2.52 to 1. The reaction of the reaction carrier planet pinions against the output ring gear is taken by the low and reverse roller clutch which is grounded to the transmission case.