Here's a general procedure. Specifics may vary slightly depending on your truck's exact configuration. Always consult a repair manual specific to your year and model for detailed instructions and torque specifications:
Tools You'll Need:
* Pitman Arm Puller: This is absolutely essential. A standard puller won't work; you need one specifically designed for Pitman arms. These typically have a threaded center bolt and claws that grip the arm.
* Sockets and Wrenches: You'll need the correct size sockets and wrenches for the steering linkage nuts and bolts.
* Torque Wrench: Crucial for tightening everything back to the manufacturer's specifications.
* Jack and Jack Stands: Safely support the vehicle.
* Wheel Chocks: Prevent the truck from rolling.
* Penetrating Oil (PB Blaster or similar): Soak the connection for several hours beforehand to loosen the corrosion.
* Hammer (optional, but often helpful): For tapping the puller into place or helping to break loose stubborn components.
* Safety Glasses and Gloves: Protect yourself.
Procedure:
1. Safety First: Disconnect the negative battery cable. Secure the vehicle safely on jack stands with wheel chocks in place.
2. Preparation: Spray the Pitman arm connection with penetrating oil liberally. Let it soak for several hours, or even overnight.
3. Disconnect Steering Linkage: Locate the nut securing the tie rod to the pitman arm. Unscrew and remove it. This will allow the pitman arm to move more freely once the arm is separated.
4. Position the Pitman Arm Puller: Carefully position the claws of the Pitman arm puller around the pitman arm. Make sure the claws are securely seated and gripping the arm evenly. Center the puller bolt over the steering shaft.
5. Tighten the Puller: Slowly and firmly tighten the center bolt of the puller. This will exert pressure on the pitman arm, gradually pulling it off the steering shaft. You may need to use a hammer to tap the puller into place if it doesn't fit easily.
6. Remove the Pitman Arm: Once the Pitman arm separates from the steering shaft, carefully remove it.
7. Installation (Reverse Procedure): Installation is the reverse of the removal process. Remember to use a new pitman arm if necessary and to apply the correct torque specification to all nuts and bolts. You must use a torque wrench.
Important Considerations:
* Steering Wheel Position: Note the position of your steering wheel before you begin. This will help you align the steering after reinstallation.
* Alignment: After reinstalling the Pitman arm, you must get a wheel alignment. Even a slight misalignment can cause premature tire wear and handling issues.
Again, this is a complex procedure. If you are not comfortable performing this task, take your vehicle to a qualified mechanic. Incorrectly installing the Pitman arm can lead to dangerous steering problems.
