Sonnax 28320 High Clutch Drum Return Spring Kit for GM Powerglide

The Sonnax 28320 high clutch drum return spring offers a reliable replacement for OE or aftermarket high clutch return springs in GM Powerglide transmissions. Engineered to provide positive disengagement of the high clutch in low gear and yield minimal resistance during upshift, this spring kit ensures smooth transmission operation and improved shift quality.

Key Features:

• Made from high tensile spring wire to slow fatigue and extend service life
• Cadmium-plated and baked to resist embrittlement in harsh transmission environments
• Close-wound spring ends prevent arch deflection and are match ground to uniform length for equal load distribution
• Precision-engineered for positive clutch disengagement and optimal shift performance

This direct replacement spring kit is designed specifically for GM Powerglide transmissions, providing professional-grade quality for rebuilds and performance applications. The advanced manufacturing process ensures consistent performance and durability under demanding conditions.