Sonnax 72570-01 Heavy Duty Overdrive Clutch Hub and Shaft for 66RFE 68RFE

The Sonnax 72570-01 heavy duty overdrive clutch hub and shaft is a critical upgrade designed to protect 66RFE and 68RFE transmissions in both stock and high-performance applications. Overdrive clutch hub and shaft failure is a common issue in Chrysler 66RFE and 68RFE transmissions, typically beginning with small cracks at the lubrication cross holes that migrate through the shaft, eventually causing catastrophic gear train failure.

Advanced Manufacturing Process:

• Cryogenically treated OE hub and shaft for improved steel stability and strength
• Shot-peened lubrication cross holes to greatly reduce crack formation
• Enhanced load capacity over original equipment design
• Superior crack resistance compared to stock components

Application:

• Direct replacement for all 66RFE and 68RFE transmission units
• Suitable for any power level from stock to heavy duty performance builds

This highly reliable hub and shaft assembly installs as an easy, direct replacement, providing long-term durability and peace of mind for transmission rebuilders and performance enthusiasts.