Here's a breakdown of the general steps involved:
1. Preparation:
* Safety First: Disconnect the negative battery terminal. Use jack stands to securely support the vehicle. Wear safety glasses and gloves.
* Gather Tools: You'll need a variety of tools, including sockets, wrenches (metric), a ball joint separator, tie rod separator, pickle fork (use cautiously!), a torque wrench, and potentially a steering rack alignment tool. A shop manual will specify the exact tools and sizes.
* Gather Parts: Obtain a new steering rack and pinion, tie rod ends (likely), and any other necessary components like seals and boots. Consider new power steering fluid as well.
2. Removing the Old Steering Rack:
* Disconnect the Tie Rods: Carefully separate the tie rod ends from the steering knuckles using a tie rod separator. Mark the tie rod threads and their positions relative to the rack before disconnecting to aid in reinstallation and alignment.
* Disconnect the Steering Shaft: Separate the steering shaft from the steering rack. This often involves removing a coupling or clamp.
* Disconnect Power Steering Lines: Carefully disconnect the high-pressure and low-pressure power steering lines. Be prepared for fluid spillage; have a drain pan ready.
* Disconnect other linkages: Disconnect any other linkages or brackets attached to the steering rack.
* Remove the Steering Rack Mounting Bolts: Remove the bolts securing the steering rack to the frame or subframe.
* Remove the Steering Rack: Carefully lower the steering rack from the vehicle.
3. Installing the New Steering Rack:
* Install the New Rack: Carefully install the new steering rack, ensuring it is properly seated and aligned.
* Reconnect everything in reverse order: Reconnect the power steering lines, steering shaft, and linkages. Tighten bolts to the manufacturer's specified torque.
* Reconnect Tie Rods: Reinstall the tie rod ends, making sure they are tightened to the correct torque and match the markings you made previously.
4. Alignment and Testing:
* Bleed the Power Steering System: Bleed the power steering system to remove any air bubbles.
* Steering Alignment: This is absolutely crucial. A wheel alignment is essential after installing a new steering rack to ensure proper driving safety. Take your vehicle to a professional alignment shop.
* Test Drive: After the alignment, test drive the vehicle carefully to check for any leaks, unusual noises, or handling problems.
Warnings:
* Consult a Repair Manual: This is a simplified overview. Refer to a repair manual specific to your 2000 Dodge Durango 4x4 for detailed instructions and torque specifications.
* Professional Help: If you're not comfortable with this level of automotive repair, it's strongly recommended you take your vehicle to a qualified mechanic. Improper installation can lead to serious safety hazards.
* Power Steering Fluid: Power steering fluid is under pressure. Take precautions to avoid injury and damage from fluid spillage.
This is a complex repair with the potential for serious consequences if not done correctly. Prioritize safety and seek professional help if you lack the experience or tools. Always refer to a reliable repair manual specific to your vehicle.
