2012 Hilux Transmission Overhaul

A transmission overhaul for a 2012 Hilux involves disassembling the transmission, inspecting all components for wear and damage, replacing any worn or damaged parts, and reassembling the transmission to factory specifications.
Here are the general steps for a transmission overhaul:
1. Remove the transmission from the vehicle and place it on a workbench.
2. Drain the fluid and remove the transmission pan, valve body, and filter.
3. Remove the torque converter and inspect it for wear or damage. Replace if necessary.
4. Disassemble the transmission, taking note of the location and orientation of all components and hardware.
5. Inspect all gears, bearings, bushings, and synchros for wear or damage. Replace as necessary.
6. Check the condition of the clutch packs and bands. Replace if necessary.
7. Inspect the input and output shafts for wear or damage. Replace if necessary.
8. Inspect the pump and pump bushings for wear or damage. Replace if necessary.
9. Inspect the planetary gearset for wear or damage. Replace if necessary.
10. Clean all components thoroughly and reassemble the transmission, replacing all gaskets and seals.
11. Install a new filter and torque converter.
12. Reinstall the transmission in the vehicle and refill with the appropriate fluid.
It's important to follow the manufacturer's specifications and use the correct tools and procedures for the specific transmission in the 2012 Hilux. A transmission overhaul can be a complex and time-consuming process, so it's recommended to have it done by a qualified technician with experience in transmission repair.