The Sonnax High Clutch Drum Flange Retaining Ring, part number 28755-04, is a precision-engineered, heavy-duty snap ring designed specifically for use with Powerglide transmissions featuring 10-clutch drum assemblies. Packaged in bags of five, this robust retaining ring ensures the secure seating of the high clutch drum flange within the transmission housing, preventing flange movement under high pressure and torque conditions.

Manufactured by Sonnax, an industry leader in drivetrain components, this ring complements other components in the Sonnax high-clutch drum rebuild kit, including the drum itself, flanges, thrust washers, seals, springs, and hub wear plates, together providing a cohesive solution for enhancing transmission durability and performance.

The ring is large-sized to suit high-performance Powerglide setups and is essential in maintaining optimal clutch assembly alignment and function. Whether during routine rebuilds or when upgrading for racing and heavy-duty use, the 28755‑04 retaining ring is a critical component in ensuring the integrity of the clutch drum assembly.

Package Quantity: 5