Description and arrangement of the Ford Focus 3 gearbox

For Ford Focus III cars, a five-speed manual gearbox of the IB5 or MTX75 type is installed (depending on the type of engine used). These mechanical gearboxes differ in gear ratios and the design of individual parts, but they have a fundamentally common layout and installation dimensions. Therefore, in this section, removal and installation are described using the iB5 manual transmission as an example. The MTX75 gearbox is removed and installed in the same way. 

The manual gearbox is made according to a two-shaft scheme with five synchronized forward gears. The gearbox and main gear with differential have a common crankcase 2 (Fig. 6.5). Clutch housing 3 (see Fig. 6.4) and 5 (see Fig. 6.5) is attached to the front of the gearbox housing. A stamped steel cover 1 is installed on the back of the gearbox housing (see Fig. 6.5).
On the input shaft 7 (see Fig. 6.5) there is a V gear fixed on the splines of the shaft with a synchronizer, and the drive gears of I, II, III and IV gears are made in one piece with the input shaft.
The secondary shaft 8 is made together with the drive gear of the main gear 9. In addition, the driven gears of I, II, III, IV and V gears freely rotating on plain bearings are installed on the shaft.
The forward gears are switched on by axial movement of the clutches of two synchronizers of I-II and III-IV gears and the synchronizer clutch of the V gear, mounted on the secondary shaft. The gearshift mechanism is located inside the gearbox housing on its left side. Outside there are two levers of the mechanism: lever 6 (see Fig. 6.4) for selecting a gear and lever 10 for switching.
The control drive of a manual transmission consists of a lever backstage ...

Rice. 6.4. iB5 manual gearbox (gear shift cover removed for clarity):
1 - breather; 2 - adapter of the working cylinder of the clutch release drive; 3 - clutch housing; 4 - reverse light switch; 5 - bracket for fastening transmission control cables; b - gear selection lever; 7 - gearbox housing; 8 - gearbox housing cover; 9 - bracket for fastening the hydraulic clutch release pipeline; 10 - gear lever; 11 - speed sensor; 12 - axle shaft seal.

... a gearshift with a ball joint mounted on the base of the body, two cables for shifting and gear selection, as well as a mechanism installed in the gearbox housing. To ensure a clear gear shift, the shift lever 10 of the shift mechanism is made in one piece with a massive counterweight. The gear selection and shift cables are structurally different from each other and are not interchangeable.
The main gear is made in the form of a pair of cylindrical gears matched according to noise. Torque is transmitted from the driven gear of the final drive to the differential and then to the front wheel drives.
The differential is conical, two-satellite. The tightness of the connection of the internal hinges of the front wheel drives with the differential gears is ensured by seals 12.