Sonnax 10-clutch drum 28756-01 is optimized for Powerglide performance applications. Using the patented Sonnax 10-clutch drum system, the drum and piston accept 10 frictions and 10 steels, increasing lockup surface to allow significantly more torque than modified OE drums.
The drum features a piston bore that is .060" deeper for greater piston travel than was available from Sonnax 10-clutch drum 28755-01 (discontinued).
Sonnax 10-clutch drums and pistons should ONLY be used as matched parts. See instructions for details.
- Patent No. 6,920,970
- Patent No. 7,204,357