Mechanical gearbox MUA5C of the car Opel Frontera B

Technical data
Gearbox type MUA5C Gear ratios: - 1st gear 3,767 - 2nd gear 2,248 - 3rd gear 1,404 - 4th gear 1,00 - 5th gear 0,809 - reverse gear 3,873 Lubricants...

General information
General view of the MUA5C gearbox Input, primary and intermediate shafts of the MUA5C gearbox The gearbox converts the torque transmitted from the engine in...

Checking the level and replacing the transmission oil
Note: The transmission case and transfer case oil filler plugs (arrows) are located on the right side of the transmission. Inspect the gearbox for oil leaks....

Removal and installation the gearbox
Removal Remove the screws and handles from both gearbox and transfer case control levers. Remove the lower instrument cluster trim and the rear and center...

Transmission support
Removal Raise the vehicle and support it on supports. Remove the transmission guard and plate from the chassis. Use a jack to support the gearbox through a...

Reverse light switch
Examination Disconnect the connector from the reverse light switch. Use an ohmmeter to check the continuity between the contacts of the reverse light switch...

Replacing the front input shaft seal
Removal Remove the gearbox from the vehicle ( see the relevant chapter ). Remove the bearing and the clutch release fork ( see the relevant chapter ). Clean...

Disassembly and assembly of the gearbox
MUA5C gearbox: 1 - vehicle speed sensor and sensor driven gear; 2 - gear shift mechanism; 3 - bearing and clutch release fork; 4 - input shaft cover and...

Shift forks and rods
Shift Forks and Rods: 1 - retainer plate, springs and balls; 2 - retaining spring; 3 - 5th gear/reverse gear shift fork rod; 4 - 5th gear/reverse gear shift...

Shafts and gears
Shafts and gears: 1 - input shaft; 2 - reverse gear pinion; 3 - 5th gear/reverse gear synchronizer sleeve; 4 - 5th gear pinion; 5 - main shaft; 6 - 5th gear...

Removal and installation the transfer case
Removal Disconnect the cable from the negative battery terminal. Remove the gearbox together with the transfer case ( see the relevant chapter ). Remove both...

Transfer case rear housing
Warning: If a major overhaul of the rear output shaft is required, the rear case may be removed from the transfer case mounted on the transmission. Removal...

Transfer case rods and forks
Transfer case rods and forks: 1 - balls, springs and stopper plugs; 2 - cylindrical pin and lever; 3 - cylindrical pin; 4 - spring; 5 - 2WD-4WD drive switching...

Transfer case mode switching drive
Transfer case: 1 - transfer case housing; 2 - retaining ring; 3 - front output shaft assembly with gears; 4 - bearing; 5 - front output shaft; 6 - locking...

Four-wheel drive control unit
Removal Disconnect the cable from the negative battery terminal. Remove the center console ( see the relevant chapter ). Remove 2 screws and remove the 4WD...

Replacing the front seal of the output shaft of the transfer case
Removal Unscrew the 4 nuts, remove the 4 bolts and remove the front suspension beam from the chassis. Mark the relative positions of the front propeller shaft...

Replacing the rear seal of the output shaft of the transfer case
Removal Remove the rear propeller shaft. Using a special tool KM-468-C, hold the drive flange from turning, unscrew the nut and remove the flange from the...

Driven gear of vehicle speed sensor
Removal Disconnect the cable from the negative battery terminal. Disconnect the connector from the vehicle speed sensor. Unscrew and remove the vehicle speed...

Gearbox and transfer case control levers
Removal Remove the screws and handles from both gearbox and transfer case control levers. Remove the lower instrument cluster trim and the rear and center...

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