Sonnax 76654-01K Smart-Tech Forward Clutch Drum for Ford 4R70W 4R70E 4R75W 4R75E AODE

The Sonnax 76654-01K Smart-Tech Forward Clutch Drum is a heavy-duty replacement designed to solve a common failure in Ford 4R70W, 4R70E, 4R75W, 4R75E, and AODE automatic transmissions. The OE forward drum frequently cracks and separates at the snap ring groove due to high-stress points created during the manufacturing process. This failure typically occurs during forced 4-3 kickdowns when the drum is active in 1st, 2nd, and 3rd gears, with concurrent pressure from the forward clutch piston causing the upper portion to split at the groove. Depending on the severity, this can result in no forward engagement or slipping in 1st, 2nd, and 3rd gear.

Key Features:

• One-piece forged construction eliminates weakness at critical stress points
• Increased groove depth for additional snap ring support
• Forged steel construction provides increased strength and durability over OE stamped drums
• Compatible with both ISS-equipped and non-ISS-equipped applications

This is the standard capacity version of Sonnax's Smart-Tech forward clutch drum line. Restore proper gear engagement and hold by installing this sturdier, forged forward clutch drum. For high-performance applications requiring increased clutch capacity, consider the high-capacity version (part number 76655-01K).