The rear axle gearbox is removed for replacement or repair
Disassembly, adjustment and assembly of the gearbox require the use of special equipment and require the skill of the performer.
Repairing a gearbox in a garage almost never leads to the desired result
Therefore, if the gearbox needs to be repaired, use the services of a specialist workshop.
You will need: wrenches "for 12", "for 13", a screwdriver, a mounting blade, a torque wrench.
Replace the gearbox on the hoist or pit.
Drain the oil from the rear axle housing.
Remove both axle shafts (see "Removing and installing the axle shaft").
Disconnect the rear propeller shaft from the rear axle gearbox (see "Removing and installing the driveline").
Remove the eight bolts securing the gearbox to the rear axle beam
Remove the gearbox.
Inspect the mating surfaces of the rear axle housing and gearbox.
On some cars, the crankcase is sealed with a gasket.
When removing or replacing the gearbox, it must be replaced.
If the gearbox is installed without a gasket (using a sealant), then special attention must be paid when choosing a sealant.
It must meet the harsh operating conditions of this vehicle unit
Install the new gearbox in the reverse order of removal.
If you are installing a gearbox after a repair or adjustment, use fine sandpaper to remove the old gasket and hardened sealant from the flange.
Apply sealant to the gearbox mounting bolts.
Tighten the gearbox mounting bolts evenly and gradually crosswise to a torque of 35–43.5 Nm (3.6–4.4 kgf m).
Don't forget to add oil to the rear axle housing.