Available in 4 and 5 speed gearboxes. The box is located in a housing bolted to the rear of the engine.
The rotation from the crankshaft is transmitted through the clutch to the input shaft, which has a splined extension to receive the clutch disc. The output shaft transmits rotation to the rear differential through the propeller shaft.
The input shaft is in line with the output shaft. The gears of the primary and secondary shafts are in constant engagement with the gear block of the intermediate shaft. Gear selection is made by sliding the synchronizer hubs, which connect the corresponding output shaft gear to the shaft.
The choice of gears is carried out by a lever fixed on the floor of the car, and a gear selection mechanism. The gear selector causes a certain fork to move the corresponding sleeve along the shaft to engage the gear with the synchronizer hub. Since the synchro hubs are splined on the output shaft, this allows the gear to engage on the shaft, thus transmitting rotation. Synchronizers are installed in all forward gears to ensure quick and quiet gear changes. consisting of locking rings and pins loaded with springs, as well as gears and hubs. Synchronization of the cones is formed on the mating surfaces of the blocking rings and gears.