25 June 2025 | Leave a comment Steps to replace the transmission in a car 1. Preparation * Gather the necessary tools and spare parts. * Disconnect the battery. * Raise the car and place it on stands. 2. Draining transmission fluid * Locate the transmission fluid drain plug on the oil pan and remove it. *Collect the liquid in a suitable container. 3. Removing the old gearbox * Disconnect all electrical connectors, sensors and actuators connected to the transmission. * Remove the bolts securing the transmission lines and drive shafts. * Disconnect the gear shift rod and speedometer drive. * Lower the subframe supporting the transmission. * Remove the bolts or latches securing the transmission to the engine. * Carefully slide the transmission rearward to disengage it from the engine. 4. Installation of a new gearbox * Place the new gearbox in place and carefully slide it onto the clutch shaft. * Install the bolts or latches securing the transmission to the engine and tighten them. * Lift the subframe and attach it to the car body. * Connect the shift rod and speedometer drive. * Screw in the transmission lines and drive shafts. 5. Connecting electrical equipment * Connect all electrical connectors, sensors and actuators to the transmission. 6. Filling with transmission fluid * Locate the transmission fluid fill plug on the transmission. * Fill with the recommended type and volume of transmission fluid. 7. Startup and testing * Connect the battery. * Start the engine. * Check transmission fluid levels. * Shift gears to check proper operation. Adviсe * Use quality parts and transmission fluid. * If possible, raise the vehicle on a lift rather than on jack stands. *Follow manufacturer’s instructions and safety precautions. *If you are unsure of your abilities, consult a qualified mechanic. Additional costs * Spare parts (new gearbox, transmission fluid) * Tools (if you need to buy or rent them) * Mechanic job (if you hire someone) Thanks for reading!