General

The T50D is a five-speed manual transmission containing the following features:
^ A fifth speed gear which works as an overdrive gear.
^ The First Gear (1GR) through fourth gears and reverse gear are meshed within the case.
^ The fifth speed gear and synchronizer are located on the back of the case in the extension housing.
^ The first/second and third/fourth reverse gear shift rails are mounted in the case cover.
^ The fifth-speed gear synchronizer and reverse idler gear and bushing are shifted through a reverse gearshift lever and mounted on a shift rail rear pin.
^ A shift interlock system, located in the case cover, prevents engagement of more than one gear.
^ The shift detent located in the extension housing turret, which consists of a detent plate, gearshift offset lever, shifter interlock spring and detent ball.
^ All gears except reverse are synchronized and helical-cut for smooth, crisp shifts and quiet operation.
^ The floor-mounted gearshift lever operates a reverse gear shift rail which extends from the extension housing turret to the shift cover.
^ Reverse is provided through a reverse idler gear and bushing which slides along a reverse idler gear shaft to engage spur gears on the countershaft cluster gear and output and fifth gear drive shaft.
^ The case is aluminum and all fasteners are metric.





Gear ratios for the 3.8L are shown in the chart.