However, here's a *very* general outline of the steps involved:
1. Preparation:
* Safety First: Disconnect the negative battery terminal. Use jack stands securely to support the vehicle. Wear safety glasses and gloves.
* Gather Tools and Parts: You'll need a comprehensive set of tools including sockets, wrenches, torque wrench, transmission jack, drain pan, and possibly a transmission alignment tool. You'll also need the new transmission, transmission fluid, and a new filter (if applicable). Consult a repair manual for a complete list.
* Consult a Repair Manual: This is absolutely crucial. A factory service manual or a reputable aftermarket manual specific to your year and model Windstar is essential. It will provide detailed instructions, torque specifications, and diagrams.
2. Removal of the Old Transmission:
* Drain the Transmission Fluid: Completely drain the transmission fluid into a suitable container.
* Disconnect Components: Disconnect the driveshaft(s), shift linkage, electrical connectors, cooling lines, and any other components connected to the transmission. Carefully label everything to ensure correct reassembly.
* Support the Transmission: Use a transmission jack to support the transmission's weight.
* Remove the Transmission Mount(s): Remove the bolts securing the transmission mount(s) to the vehicle's frame.
* Separate the Transmission: Carefully lower the transmission using the jack, separating it from the engine. This might require some maneuvering and possibly removing the starter motor or other components for clearance.
3. Installation of the New Transmission:
* Install Transmission Mount(s): Install the transmission mount(s) to the vehicle's frame.
* Align the Transmission: Use a transmission alignment tool (highly recommended) to correctly align the transmission with the engine's bellhousing.
* Connect the Transmission: Carefully raise the new transmission into place using the jack, connecting it to the engine's bellhousing.
* Reconnect Components: Reconnect all previously disconnected components, ensuring everything is properly secured and aligned. Pay close attention to the torque specifications in your repair manual.
* Refill with Transmission Fluid: Fill the transmission with the correct type and amount of transmission fluid according to your repair manual.
4. Final Steps:
* Check Fluid Levels: Check and adjust the transmission fluid level.
* Test Drive: Carefully test drive the vehicle, checking for proper shifting and operation.
* Recheck Fluid Levels: After the test drive, recheck and adjust the transmission fluid level as needed.
Again, this is a simplified overview. Attempting this repair without the proper knowledge, tools, and experience can lead to significant damage to your vehicle or personal injury. The cost of professional labor might be less than the cost of parts and the potential damage from an improper repair. Consult a qualified mechanic.
