Manual Transmission - Overview: Overview

The MMT6 manual transmission features the following:

• Two-part aluminum housing
• All gear wheels are helical toothed and are constantly engaged
• 1st, 2nd, 3rd and 4th gear are triple synchronized.
• 5th, 6th and reverse gear have double synchronization
• By optimizing the friction in the transmission and using a lower viscosity transmission fluid, it has been possible to achieve fuel savings and thereby reduce CO2 emissions. Information on the specification can be found in FordEtis
• An externally mounted gearshift mechanism
• All driving gears of the transmission are located on the input shaft
• The input shaft is designed as a solid shaft and runs on one ball bearing and one roller bearing with no pre-load
• The gears for 1st and 2nd gear are an integral part of the input shaft. The gears for 3rd and 5th gears and the gear for 4th/6th gear are pressed on. Because of the high force used to press on the components, the gears cannot be pressed off in service. A faulty input shaft can only be replaced as a complete unit
• Defective bearings can be pressed off and changed
• The output pinion of the 1st/4th gear output shaft is an integral part of the shaft
• The synchronizers of the 1st/2nd and the 3rd/4th gears are located on the output shaft
• The 1st/4th gear output shaft is a hollow shaft. The fluid is directed into the inner diameter of the hollow shaft for lubrication of the needle bearings and the synchronizer units. Both output shafts run on taper roller bearings which are pre-loaded with the aid of adjusting shims in the clutch housing
• The output pinion is an integral part of the shaft
• The 5th/6th and reverse gear synchronizer assemblies are located on the shaft
• The 5th/6th/reverse gear output shaft is a hollow shaft. The fluid is directed into the inner diameter of the hollow shaft for lubrication of the needle bearings and the synchronizer units. Both output shafts run on taper roller bearings which are pre-loaded with the aid of adjusting shims in the clutch housing
• The differential runs on taper roller bearings and is pre-loaded with the aid of an adjusting shim in the clutch housing