In 1st gear
- Hydraulic pressure is applied to the 1st clutch, then the 1st clutch engages the secondary shaft 1st gear with the secondary shaft.
- The mainshaft idler gear drives the secondary shaft via the idler shaft idler gear and the secondary shaft idler gear.
- The secondary shaft 1st gear drives the countershaft 1st gear and the countershaft.
- Power is transmitted to the final drive gear, which in turn drives the final driven gear and front differential.
- 4WD: As the final driven gear turns the front differential, power is transmitted through the transfer drive gear to the transfer shaft that drives the transfer drive gear (hypoid gear) and the transfer output shaft (hypoid gear).
NOTE:
The illustration shows the 4WD transmission; the 2WD does not have the transfer mechanism.