POWER FLOW The transmission must efficiently transfer the engines power, in terms of torque, to the vehicles rear wheels. Knowledge of what takes place in the transmission during torque transfer is essential when troubleshooting and making repairs becomes necessary.
FRONT SECTION POWER FLOW: 1. 2. 3. 4. 5. 6.
Power (torque) from the vehicles engine is transferred to the transmissions input shaft. Splines of input shaft engage internal splines in hub of main drive gear. Torque is split between the two countershaft drive gears and is delivered along countershaft to all countershaft gears. Torque is transferred to "engaged" mainshaft gear. The following cross section views illustrate a 1st/4th/9th speed gear engagement. Internal clutching teeth in hub of engaged mainshaft gear transfers torque to mainshaft through sliding clutch. Mainshaft transfers torque directly to auxiliary drive gear.
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