Billet Main Shaft | ZF 8HP90 / ZF8HP95 Transmissions

The ATS Billet Main Shaft is engineered specifically for the ZF8HP90 and ZF8HP95 transmissions, providing a high-strength solution for performance builds where factory components become a limitation. Designed for high horsepower street cars, drag racing applications, and extreme-duty use, this billet shaft is built to handle the power levels modern performance platforms demand.

Precision-machined from premium alloy steel, every shaft undergoes heat treatment and hardening processes to maximize strength, durability, and resistance to torsional fatigue. The reinforced billet design improves reliability under hard launches, increased torque loads, and aggressive driving conditions where OEM shafts can become a failure point.

Engineered as a direct replacement for the factory main shaft, the ATS Billet Main Shaft delivers improved strength while maintaining OEM fitment within the ZF8HP platform.

Features & Benefits:

• Precision-machined billet alloy steel construction
• Heat-treated and hardened for maximum durability
• Increased resistance to torsional fatigue and shaft twist
• Reinforced design for high horsepower applications
• Direct replacement for OEM ZF8HP90 / ZF8HP95 shafts
• Ideal for drag racing, street performance, and extreme-duty builds

Whether you’re pushing a high-boost street car or building a dedicated race vehicle, the ATS Billet Main Shaft delivers the strength and confidence needed to take the ZF8HP90 and ZF8HP95 platforms to the next level.