lever includes a cam portion that is selectively engageable with one of the shift forks when the reverse lever is manipulated to move the idler gear to intermesh with the reverse gear set the cam portion of the reverse lever triggers partial engagement of another gear set in order to synchronize the speed between the input and output shaft so that the idler gear is spinning at a similar speed as the driven gear of the reverse gear set application_number US 201113160177 A description the following description is merely exemplary in nature and is not intended to limit the present disclosure application or uses referring to the drawings wherein like reference numbers refer to like components in fig1 a perspective view of a partial transmission 10 of the present invention is illustrated the transmission 10 includes an input shaft 12 a main shaft 14 and an idler shaft 16 with each supported by a housing 18 the input shaft 12 is connected to for example an engine output shaft not shown and the main shaft 14 is connected to for example a vehicle drive shaft not shown that provides torque to a drive wheel of the vehicle the transmission 10 further includes a plurality of gearsets 20 a plurality of synchronizers 22 and a plurality of shift rails 23 the input and main shafts 12 14 rotatably support the plurality of gear sets 20.