Mandatory substitutions
* Friction discs: Subject to wear from friction and sliding.
* Steel discs: Provide a friction surface for the friction discs.
* Gaskets and Seals: Prevent transmission fluid leakage.
*Transmission Filter: Removes contaminants from transmission fluid.
*Transmission Fluid: Lubricates and cools transmission components.
Potential replacements
* Sun Gear: The central gear in a planetary gear.
* Planetary Gears: Gears that rotate around the sun gear.
* Pump: Circulates transmission fluid.
* Torque Converter: Links the engine to the transmission.
* Pressure Regulator: Regulates transmission fluid pressure.
* Solenoids: Control the flow of transmission fluid.
* Gearbox: Contains planetary gears and other transmission components.
Additional Considerations
*Replacement may be required depending on transmission type, wear condition and symptoms of failure.
* It is always recommended to consult a qualified mechanic for proper diagnosis and replacement.
*Using quality parts and transmission fluid is critical to transmission longevity.
* Regular maintenance, including changing the transmission fluid and filter, can extend the life of the transmission.