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Powerglide

Contender Clutch Drum, Hub & Piston Kit
Part No. 28755-14K

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Sonnax Contender clutch drum, hub and piston kit 28755-14K for GM Powerglide units includes the three essential components for building a seven- or eight-clutch drum assembly.

The high-quality Sonnax drum is machined with 12 additional lugs to reduce rotating mass, allowing it to be used with 12- or 24-lug steel plates. The piston bore and other features are identical to OE. Expanding the capability of Sonnax direct replacement drum 28755, this kit adds a clutch hub and piston configured to accept extra frictions for increased torque and holding power.

  • Forged 6061 aluminum piston will not crack at high operating pressure like cast pistons
  • Forged chromoly steel clutch hub provides superior strength
  • Shim
  • Clutch Hub
  • Clutch Piston
  • Clutch Drum

May 09, 2017

Level Up with Sonnax: 5 Key Powerglide Transmission Areas to Upgrade for Optimum Performance

Topics: Transmission GM Powerglide Transmission

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  • 28755 14k combo