Suncoast Converters High Clutch Drum Spring Retainer 28755-02

The Sonnax High Clutch Drum Spring Retainer, Part No. 28755‑02, is a precision-engineered component for the GM Powerglide transmission. Crafted from high-strength aluminum, it offers superior durability and weight reduction compared to stock steel versions. This retainer securely houses the high-clutch return springs, ensuring consistent compression and engagement for optimal clutch performance.

It is designed for both factory-style rebuilds and upgraded 10-clutch drum assemblies. The retainer is tested to SAE and OE standards and integrates seamlessly with other Sonnax components, like the 10-clutch drum kit (28756‑01K). It provides reliable spring retention under high RPM and harsh driving conditions, enhancing overall Powerglide transmission performance.