The car is equipped with main transmission gears with different gear ratios. The number of teeth of the driven 1 and leading 2 gears is stamped on the driven gear.
Attention! The main transmission gears are selected in pairs at the factory based on noise and contact patch. Therefore, when replacing the driven gear, also replace the secondary shaft with the drive gear: they are sold in pairs. To check, count the number of teeth of the drive gear on the secondary shaft.
1. Inspect the working surfaces of the satellites, the satellite shafts, the axle gears and the spherical surfaces of the differential housing that contact them. Remove minor irregularities with fine-grained sandpaper. Replace parts with significant defects.
2. Inspect the bearing seats on the differential housing. If these seats are significantly worn, replace the differential housing. If there is pitting (cavities) on the raceways and rolling elements, traces of rolling element indentation on the raceways, or damage to the separators, the bearings must be replaced.
3. Check the condition of the gearbox driven gear. If there are chips, flaking or significant wear of the teeth, replace the gear.