Forged Gearbox Housing & Differential Case - 300+ PSI Pressure Rating, ±0.01mm CNC Precision for Automotive Systems

Our new forged gearbox housings and differential cases are precision-engineered for maximum durability in automotive and heavy equipment applications. Manufactured through advanced hot forging processes, these components provide superior structural integrity compared to cast alternatives, ensuring reliable performance under extreme torque and load conditions.

• Premium Forged Construction: High-strength alloy steel (4140/4340) for exceptional impact resistance and fatigue life
• Precision Machining: CNC-machined to ±0.01mm tolerances for perfect gear alignment and reduced vibration
• Heat-Treated Durability: Hardened to HRC 32-50 (customizable) for wear protection in harsh environments
• Leak-Proof Design: Integrated sealing surfaces prevent lubricant leakage in differential/gearbox systems
• OEM/Aftermarket Fit: Direct replacements for trucks, construction equipment, and performance vehicles

• Material: Forged alloy steel (4140/4340) or ductile iron (EN-GJS-600-3)
• Process: Closed-die hot forging + CNC machining + shot peening
• Surface Finish: Machined (Ra 1.6μm), phosphated, or black oxide coated
• Flange Flatness: ≤0.05mm across sealing surfaces
• Pressure Rating: Withstands 300+ psi fluid pressure (differential housings)
• Compatibility: Fits manual/automatic transmissions, limited-slip differentials

• Heavy Trucks: Axle differentials, transfer cases
• Construction Equipment: Bulldozer/loader transmissions
• Performance Vehicles: Racing differential housings
• Agricultural Machinery: Tractor gearboxes