Is forwarding the power from the engine to the wheels. Change the ratios, with increased torque and change the direction of rotation is just forward or backwards c.
The power transfer from the engine to the wheels. Gear ratios for increased torque. And change the direction of rotation That is the only forward or backward.
Is coming from the engine to the wheels. Forward Change rate of test for torque increase and change the direction of rotation, that is just ahead หรือถอยหลัง.