184 OPERATION Double-Clutching Double-clutching is a way to bring the speed of the transmission gears into synchronization so that the shift can be made without a clash. The engine is used to speed up the counter shaft for a downshift and to slow it down for an upshift. Note: For all non-synchronized transmissions, double-clutching is necessary on downshifts and upshifts. It is advisable to use the torque-limiting clutch brake to engage first and REVERSE gears and to double-clutch for gear ratio changes. 1. Depress the clutch pedal and shift to NEUTRAL. 2. Release the clutch pedal and increase (downshift) or decrease (upshift) engine speed until it roughly corresponds to the road speed of the desired gear. 3. Depress the clutch pedal and complete the shift. Then release the clutch pedal.