1. Preparation and Safety:
* Disconnect the battery: This prevents accidental shorts.
* Safety First: Use jack stands to support the truck securely. Never work under a vehicle supported only by a jack.
* Gather Tools: You'll need various wrenches (likely including a socket set), a hammer, punch, pry bar, possibly a pickle fork (for separating ball joints), and penetrating oil (like PB Blaster). A helper can be extremely beneficial.
2. Disconnect Components:
* Steering linkage: Disconnect the drag link from the steering arm on the pitman arm of the steering box. This will likely require removing cotter pins and using wrenches.
* Steering column: Disconnect the steering column from the steering box. This usually involves removing bolts or clamps. You might need to temporarily support the steering column to prevent it from falling.
* Tie rod ends: Disconnect the tie rod ends from the steering arms. Use a tie rod separator or pickle fork to carefully separate the ball joints. Mark their position relative to the steering arms before removal to ensure proper reinstallation.
* Hydraulic lines (if applicable): If you have power steering, disconnect the hydraulic lines from the steering box. Be prepared for some fluid leakage; have a catch pan ready.
3. Removing the Steering Box:
* Support the steering box: The steering box is heavy. You may need to use a jack or support to help manage its weight.
* Bolts: Locate and remove the bolts securing the steering box to the frame. These bolts are often difficult to access and may be rusted or seized. Penetrating oil is your friend here. Work carefully and systematically.
* Lower the steering box: Carefully lower the steering box. It might be necessary to maneuver it slightly to clear frame members.
4. Reinstallation (in reverse order):
Reassembly is the reverse of removal. Remember to:
* Torque specifications: Use a torque wrench to tighten all bolts to the manufacturer's specified torque. This is crucial to prevent leaks and ensure proper function.
* Bleeding the system (if applicable): If you have power steering, you will need to bleed the system after reinstallation to remove air bubbles.
Important Considerations:
* Rust and Corrosion: On a 1951 truck, rust and seized components are very likely. Soak any stubborn bolts and connections with penetrating oil well in advance of attempting removal.
* Manual vs. Power Steering: The process might have minor differences depending on whether your truck has manual or power steering.
* Repair Manual: A genuine shop manual for your specific year and model is invaluable. It will provide detailed diagrams, torque specifications, and step-by-step instructions.
This is a simplified overview. The actual process might be more complex due to the age and condition of your truck. If you're not comfortable performing this task, it's best to consult a qualified mechanic. Working on older vehicles requires patience and a methodical approach.
