Sonnax 35572-62T Heavy Duty E Clutch Hub 62-Spline ZF 8HP Transmission Upgrade

The Sonnax 35572-62T Heavy Duty "E" Clutch Hub is a high-strength upgrade replacement for the factory "E" clutch hub found in ZF8HP51, ZF8HP55, and Chrysler 850RE automatic transmissions. The OEM hub is manufactured from weak, cast A380 aluminum that is no match for the high torque demands of these applications — leading to spline shearing, failsafe conditions, ratio codes, and complete loss of movement, sometimes in as few as 20,000 miles.

The Sonnax 35572-62T is machined from aerospace-grade, forged 4000-series aluminum — the same material used in high-performance engine pistons — delivering dramatically superior yield strength and fatigue resistance compared to the OEM cast hub. The forging process aligns the grain structure of the aluminum for enhanced toughness, allowing the hub to withstand high stress loads without risk of cracking or spline shearing.

Key Features:

• Forged aerospace-grade 4000-series aluminum construction — far superior to OEM cast A380 aluminum
• 62-spline design for direct fitment in ZF8HP51, ZF8HP55, and Chrysler 850RE transmissions
• Eliminates "E" clutch hub spline failure and shearing under high torque
• Prevents steel clutch plates from digging into drum splines, reducing clutch pack burn and hang-up
• Superior yield strength prevents deformation in high-torque and high-demand applications
• Forged grain structure resists wear from steel clutch plates for longer service life
• Direct OEM replacement — no modifications required

For the 53-spline application (Chrysler 845RE / ZF8HP45), use Sonnax part number 35572-53T. For the 48-spline application (ZF8HP55 / ZF8HP75), use 35572-48T. For the 38-spline application (ZF8HP70), use 35572-38T.