The gearbox is a very complex unit, and its repair must be carried out in a specialized workshop. Also, when removing and installing many parts, it is necessary to measure the gaps and, if necessary, adjust them, for which it is necessary to use the appropriate shims and washers. Gearbox parts are not commercially available, must be ordered and are still very expensive. If the gearbox is faulty or operates with a lot of noise, it is advisable to entrust the repair of the gearbox to a specialist or replace the gearbox, which can cost significantly less. However, some transmission problems can be repaired without removing the transmission from the vehicle.
Despite all the difficulties, an experienced specialist can repair the gearbox at home. In this case, it is necessary to have special tools and perform the work sequentially, step by step, marking the operations performed. When repairing the gearbox, it is necessary to use special circlip pliers, bearing pullers, an inertial hammer, a set of punches, a micrometer and a hydraulic press.
Before removing the gearbox, try to determine its malfunction as accurately as possible, which will greatly facilitate repairs in the future.