King Pin Repair in Northern California

Expert On Site King Pin Repair and Replacement

King pins are the critical pivot point of a truck’s steering system. When they wear out or fail, the result is poor handling, uneven tire wear, and unsafe driving conditions. For truck owners, fleet operators, and equipment managers in Northern California, reliable king pin repair is not optional — it’s essential.

At Axle Surgeons™ of Northern California, we specialize in mobile king pin repair and replacement for heavy-duty vehicles. Using our proven on site process, we restore precision steering and extend axle life without the delays and costs of a traditional repair shop. Since 1972, we’ve been the trusted name for axle, spindle, and king pin repairs across Northern California and Southern Oregon.

What Is King Pin Repair?

The king pin is a large steel pin that connects the steering knuckle to the axle beam, allowing the wheels to pivot smoothly for steering. Over time, constant stress, heavy loads, and poor lubrication cause the king pin and bushings to wear down. When this happens, steering becomes loose, alignment suffers, and safety is compromised.

Traditional shop-based repairs often require axle removal and lengthy downtime. With our mobile king pin service, we repair or replace worn king pins directly on site, saving you both time and money.

Signs Your King Pins Need Repair

If your vehicle shows any of the following symptoms, it may be time for king pin repair or replacement:

• Excessive play in the steering wheel

• Uneven or rapid tire wear

• Difficulty keeping the vehicle aligned

• Squeaking or grinding noises when steering

• Steering that feels loose or unstable

Ignoring these signs can result in steering failure, suspension damage, and costly repairs.

Our Mobile King Pin Repair Process

Our technicians follow a proven process designed to restore steering performance quickly and accurately:

1. Initial Inspection
   We evaluate the king pins and related components to determine the extent of wear or damage.

2. Disassembly and Removal
   Worn king pins and bushings are removed using specialized mobile equipment.

3. Precision Machining
   The axle eye is bored to restore roundness and alignment, ensuring a proper fit for the new king pin assembly.

4. Installation of New Components
   High-quality king pins, bushings, and bearings are installed to factory-level specifications.

5. Final Alignment Checks
   Steering geometry and axle inclination are verified to ensure safe, smooth handling.

Most king pin repairs can be completed on site within a single day, minimizing downtime and returning your vehicle to service quickly.

Benefits of Mobile King Pin Repair

• On Site Service – No towing required; we come directly to your yard, shop, or roadside location.

• Reduced Downtime – Same-day repair in most cases keeps your fleet or truck moving.

• Cost-Effective – Avoids costly shop labor and extended vehicle downtime.

• Precision Results – Our process restores axle alignment and ensures smooth, safe steering.

• Durability – High-grade replacement parts ensure long-lasting performance.

• Versatility – Service available for trucks, trailers, buses, RVs, and heavy equipment.

Who We Serve

Our mobile king pin repair service is trusted by a wide range of operators:

• Commercial Trucking Fleets – Keep trucks aligned and road-ready without missed deadlines.

• Independent Truck Owners – Affordable, reliable repairs to keep your rig safe and compliant.

• Transit and Bus Companies – Ensure smooth handling and passenger safety.

• RV Owners – Improve handling and extend axle life for motorhomes and large recreational vehicles.

• Heavy Equipment Operators – Safe steering for construction and off-road equipment.

• Fleet Managers – Scheduled maintenance and emergency repair services available.

Why Choose Axle Surgeons™ of Northern California

For more than five decades, we’ve been leaders in spindle, axle, and king pin repair. Here’s why customers across Northern California continue to rely on us:

• Experience Since 1972 – Over 50 years of proven expertise in heavy-duty axle and steering repairs.

• Patented Mobile Process – Exclusive methods that save time, eliminate towing, and restore precision.

• High-Quality Parts – U.S.-made king pins and bushings designed for strength and durability.

• Trusted Technicians – Trained specialists dedicated to safety and customer satisfaction.

• Full Service Coverage – From Sacramento to the Oregon border, we bring the repair shop to you.