ATI Billet Aluminium E-Clutch Hub to Suit Toyota & BMW ZF 8HP51 Auto Transmissions

The OEM part is made from A380 aluminum that is easy for OEM's to cast and machine, but will fail in high performance and high mileage applications. The splines of the OEM hub will wear or shear completely off. On the opposite side the steel clutch plates will dig into the splines causing hang up or slow apply and release times and burn up the clutches. This can happen even in mild performance applications.

ATI's new, American-made part was designed in house and starts life as billet 7075 aluminum. Improvements were made to all weak areas with bigger radii and more material. More oil passages and slots were added to allow maximum flow. This part has been race proven for more than a year now and will fit some 8HP45 with the same OEM part number.

Improved strength in all areas:

• Improved oil flow and distribution
• 76% stronger Tensile strength over OEM material
• 192% higher Yield strength over OEM material
• 8% more elongation before break than OEM

ATI Performance Products, Inc. is located in Baltimore, MD, and specializes in producing and maintaining high performance products for street and strip applications. Over the years ATI has earned a reputation for its cutting edge technology, attention to detail, and rigorous testing under race conditions.