The 10-clutch system increases lockup surface in GM Powerglides for significantly more torque capacity than modified OE drums. The drum kit includes 10 .060" frictions and 10 .060" thick , 24-lug steels, increasing lockup surface to allow significantly more torque than modified OE drums. 10-clutch drum kit with bearing 28756-08K is a complete drum kit that includes all high clutch related components, including a pump-to-drum bearing and shim, plus a pre-installed, PTFE-coated bushing. The drum has material removed for the kit's bearing, allowing overall stack up to be .060" taller than an OE drum alone. * Patented drum, hub and piston system improves clutch capacity for maximum durability* 24-Lug steels feature turbulator holes and optional rubber seperators.* High-strength drum with reduced rotating mass improves on-track acceleration* 6061 Forged piston will not crack like cast pistons* Forged chromoly clutch hub guarantees your power makes it to the wheels

Sonnax 28756-08K Includes:

• 10-Clutch Drum
• 10-Clutch Piston
• Bushing PTFE-Coated
• 10-Clutch Hub
• High Clutch Return Springs 24
• Clutch Drum Spring Retainer
• Retaining Ring Large
• Retaining Ring Small
• Wear Plate Large
• Wear Plate Small
• Lip Seal Large
• Lip Seal Small
• Frictions 10 .060"
• Kolene Steels 10 24-Tooth
• Thrust Bearing
• Rubber Bumpers 60 Not Shown, 6 Extra
• Shim Narrow
• Shim Wide