Power Flow

Powerflow is accomplished with a series of gears and synchronizers.

In NEUTRAL, there is no powerflow through the transmission.

In first gear, the first/second synchronizer sleeve locks the first gear to the output shaft. The input shaft drives the countershaft. First gear on the countershaft turns first gear on the output shaft which is driven in reduction at a 3.90: 1 ratio.

In second gear, the first/second synchronizer sleeve locks the second gear (2GR) to the output shaft. The input shaft drives the countershaft. Second gear on the countershaft drives second gear on the output shaft. The output shaft is driven in reduction at a 2.25:1 ratio.

In third gear, the third/fourth synchronizer sleeve locks the third gear (3GR) to the output shaft. The input shaft drives the countershaft. Third gear on the countershaft drives third gear on the output shaft. The output and fifth gear drive shaft is driven in reduction at a 1.49:1 ratio.

In fourth gear, the third/fourth synchronizer sleeve locks the input shaft to the output and fifth gear drive shaft. The input shaft and output shaft turn at the same speed (1:1 ratio).

In fifth gear, the fifth/reverse synchronizer sleeve locks the fifth gear (5GR) to the countershaft. The input shaft drives the countershaft. Fifth gear on the countershaft drives fifth gear on the output shaft. The output shaft is overdriven at a ratio of 0.80:1.

In REVERSE gear, the fifth/reverse synchronizer sleeve locks the REVERSE gear to the countershaft. The input gear drives the countershaft. The countershaft reverse gear drives the reverse idler gear. The reverse idler gear drives the reverse gear on the output shaft. The output shaft is driven in the opposite direction of the input shaft at a ratio of 3.91:1.