Sonnax 10-clutch drum kits are optimized for Powerglide performance applications. Using the patented Sonnax 10-clutch drum system, the drum and piston accept 10 frictions and 10 Kolene steels, increasing lockup surface to allow significantly more torque than modified OE drums. The drum features a piston bore that is .060 in. deeper for greater piston travel.
Kits include:
* Complete 10-clutch drum kit with all related parts, including installed PTFE-coated bushing
* Includes ten .060 in. frictions and ten .060 in. thick, 12-tooth Kolene steels
* Excess material removed from high-strength, cast steel drum to reduce rotating mass
* 6061 forged aluminum piston will not crack at high operating pressure like cast pistons
* Forged chromoly steel clutch hub with lightening holes