Here's why it's so challenging:
* Heavy and Bulky: Automatic transmissions are heavy and awkward to maneuver. Lifting and supporting them safely requires proper equipment and techniques to avoid injury.
* Numerous Connections: The transmission has many connections – fluid lines, electrical connectors, shift linkage, torque converter, driveshaft, etc. Disconnecting and reconnecting them correctly is crucial and requires precision.
* Torque Specifications: Bolts must be tightened to precise specifications to prevent leaks and damage. Improper torque can lead to serious problems.
* Specialized Tools: You'll need transmission jacks, a torque wrench, various sockets and wrenches, and potentially specialized transmission alignment tools.
* Fluid Management: Properly draining, refilling, and bleeding the transmission fluid is essential. Improper fluid handling can damage the new transmission.
* Potential for Damage: A mistake during the process could lead to further damage to the vehicle, including the new transmission.
In short: Unless you have extensive experience working on transmissions, including experience with similar models, you're significantly increasing the risk of damage and injury by attempting this yourself. The cost of a mistake could far exceed the cost of having a professional mechanic do the work.
If you're determined to learn, consider starting with simpler repairs on your car before tackling such a complex project. Watching detailed video tutorials and consulting a repair manual specific to your 1989 Cavalier Z24 is crucial, but won't replace the experience of a qualified mechanic. Even with this preparation, it is still a very challenging job.
