Chevy 4L65E / 4L70E Transmission Raybestos Master W/GPZ 3-4 Level 2 Rebuild kit 2004-On This transmission rebuild kit includes Stock Raybestos Friction clutches with the GPZ grade frictions in the 3-4 drum, Steel Plates, Bonded Pistons, Sealing Rings, Metal Clad Seals, Gaskets, & O-rings + Raybestos Pro Series band, filter, pump bushing, & extension housing bushing. All these kits have Raybestos clutches, and Transtec Gasket kits.