🛠️ What Is a Crown Wheel & Pinion?

The Crown Wheel & Pinion (also known as ring gear and pinion) is a key gear set in a vehicle’s differential.

The crown wheel (ring gear) is the larger gear inside the differential, while the pinion is smaller and connects directly to the driveshaft.

Together, they change the direction of power flow and determine your vehicle’s final drive ratio, impacting torque delivery and speed.

🔍 Why It Matters

✅ High Strength & Wear Resistance – Precision materials and processing ensure durability and long service life.

🔇 Low Noise Performance – Accuracy grinding and CNC machining deliver smooth tooth contact.

⚙️ Precisely Engineered Tooth Alignment – Enhances efficiency and longevity.

🚗 Wide Vehicle Compatibility – Available for Toyota, Isuzu, Ford, Nissan, GM, Dana, Mercedes, Hyundai, and more.

⚙️ Manufacturing Process Overview

Material Selection – High-strength, wear-resistant alloy steels are used for both ring gear and pinion.

Forging & Heat Treatment – Forged to shape, then quenched & tempered to ensure optimal hardness and mechanical stability .

Machining –

Rough machining (turning and milling) to shape rough dimensions.

Finishing (surface grinding, gear cutting) for precise tooth geometry and smooth surfaces.

Inspection & Assembly – Final inspection with gauges, hardness tests, and dimensional checks; then assemble into gear set.

🔧 Performance & Customization

Custom Gear Ratios – Tailor-made ratios (e.g., 6:39, 8:39, 10:41) available to tune for torque, speed, or off‑road performance.

Applications – Ideal for off-road builds, motorsport setups, heavy‑duty vehicles, and B2B fleets xjxgears.com.

Upgrading Benefits – Swapping out crown wheel & pinion can improve acceleration, top speed, and handling xjxgears.com.

📦 Why Choose XJX Parts?

Full range of models and ratios in stock

✅ Precision‑machined ✅ Heat treated ✅ Low noise & long life

💬 Bulk orders and customization supported

📩 Interested in Partnering?