An automobile differential assembly assembly process, which is characterized in that the oil stains and rust on each assembly part are cleaned first, and then sequential assembly: use a pad selection machine to measure the inner cavity of the differential case and detect the required planetary gears Gaskets, side gear spacers, respectively put the side gears, side gear spacers, planetary gears and planetary gear spacers, and planetary gear shafts into the inner cavity of the differential case, and use a special measuring device to measure and adjust the planetary gears When turning the side gear, there must be no sticking or loosening. Apply thread locking agent to the bolt thread, and the bolt will fasten the driven gear to the differential case until According to the specified torque, special tools are used to press the differential bearings into the two ends of the differential housing, and then the products are rolled off the assembly line. The gap between the planetary gear and the side gear is stable, the product consistency is good, the precision is high, the pass rate is high, the production efficiency is high, the cost is low, the operation is simple, and it has a wide range of popularization and application value.