GM 4L60E 4L65E 4L70E Transmission Power Pack Master Level 2 Rebuild Kit 2004-On 74006GAPWR_L2 This transmission rebuild kit includes Alto Friction Plates, 3-4 Power Pack, Steel Plates, Sealing Rings, Metal Clad Seals, Gaskets, O-rings, Bonded Rubber Pistons + Filter, band, pump bushing, and ext hsg bushing. This pack comes with the Alto Power Pack for the 3-4. This Power Pack has additional clutches to increase friction plate capacity. This allows for an increased torque load with reduced heat generation.