Product Description
Core Product Advantages
Application Scenarios
Product Specifications & Additional Notes
Why Choose Our 8x37 Final Drive Gear Set
The 8x37 Final Drive Gear Set is a high-precision crown wheel and pinion assembly, the core component of a vehicle’s differential responsible for final drive reduction. Connected to the driveshaft, the pinion meshes with the larger crown wheel (ring gear) to transfer rotational power at a 90-degree angle to the axle shafts—its key function is to drastically reduce engine speed while multiplying torque to levels required for smooth vehicle movement.
The gear ratio of this 8x37 final drive gear set balances acceleration and top speed perfectly, making it ideal for daily use and heavy-load scenarios. Crafted from high-strength steel via precision machining, the 8x37 Final Drive Gear Set withstands immense shear forces, ensuring efficient power delivery, long-term durability, and quiet operation even under extreme loads. Designed specifically for Japanese and Korean models, this gear set offers perfect fitment and reliable performance as a direct replacement for original parts.
OEM-Grade Fitment: Manufactured to original vehicle dimensions, ensuring seamless replacement of original parts without modifications.
12-Month Quality Guarantee: Comprehensive quality warranty from the date of customer receipt, covering manufacturing defects and performance issues.
Flexible Ordering: Accepts small-batch orders (retail orders excluded) to meet diverse business needs.
Model Specialization: Focused on Japanese and Korean vehicles, including Toyota, Mazda, Isuzu, Mitsubishi, Hyundai, Kia, and more.
Customizable Packaging: Tailored packaging options available to align with your brand and logistics requirements.
Core Product Specifications
Specification Category | Details |
|---|---|
Gear Type | Hypoid Gears (for RWD/AWD; offset pinion axis) standard for automotive use |
Diametral Pitch (DP) | 8 (matching 8x37 gear set; suitable for light trucks/SUVs and passenger cars) |
Number of Teeth | Pinion: 8 teeth; Crown Wheel: 37 teeth (final drive ratio optimized for balance) |
Material | SAE 8620H (20CrMnTiH equivalent) Nickel-Chromium-Molybdenum high-strength steel |
Heat Treatment | Deep carburizing; Surface Hardness: 58–64 HRC; Core Hardness: 30–45 HRC; Case Depth: 0.8–2.5 mm |
AGMA Quality Class | AGMA 12–13 (passenger car standard; precision-ground for quiet operation) |
Torque Capacity | 1,500–4,000 Nm (input torque; suitable for passenger cars and light trucks) |
Speed Rating | Max pinion speed: 6,000–8,000 RPM (ICE vehicles) |
Additional Notes
Installation: Use precise shims for pinion depth (0.10–0.25 mm backlash) and correct preload; check tooth contact pattern with marking compound. Break-in period: 500–1,000 miles (800–1,600 km) with no heavy towing.
Lubrication: Use API GL-5/MIL-PRF-2105E oil (SAE 75W-90 standard; 75W-140 for heavy loads). LSD-compatible oil requires friction modifiers; EV applications need dielectric, low-viscosity fluids.
Failure Prevention: Avoid pitting/scuffing by using correct lubrication and installation; whine/rumble often stems from misalignment or bearing issues.
Standards Compliance: Meets AGMA 2000/2001, ISO 6336, SAE J661, and OEM-specific standards (Toyota TSM, Hyundai specs, etc.).
Product Description
Core Product Advantages
Application Scenarios
Product Specifications & Additional Notes
Why Choose Our 8x37 Final Drive Gear Set
